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HSK 3 | verb/adjective | to use more of something than is needed

HSK 4 | adjective | going beyond the surface to reveal essential truth or insight

JLPT N4 kanji 練 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

JLPT N4 kanji 晴 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

Master the most frequently tested N1 四字熟語, learn how they are formed from classical Chinese and Japanese sources, and use them correctly in formal and literary contexts.

しかし (しかし / shikashi): however, but. N4 level Japanese vocabulary.

Master both meanings of 〜次第: 'as soon as ~' (formal temporal) and 'depends on ~' (conditional) — essential for N3 business communication.

HSK 3 | noun | the reasoning or principle behind something

HSK 3 | verb / adjective / noun | putting in great effort toward a goal

Master all four tenses of the Latin subjunctive and learn to form purpose clauses with ut and ne.

HSK 3 | noun / adjective | difficulty, hardship; difficult, hard

〜ように: JLPT N4 grammar pattern. Usage, structure, examples, and comparison with similar patterns.

HSK 5 | discourse marker | in other words; to put it another way

Engage with Chinese discourse on international relations, foreign policy, and globalization, mastering the vocabulary and grammar of global governance.

HSK 5 | noun | ability, capability, capacity to do something

We are given a tree with n nodes, where each edge has a positive length. A tree guarantees that there is exactly one simple path between any two nodes.

HSK 3 | noun | weekend, Saturday and Sunday

Master four essential N3 formal conjunctions: 〜において/〜における (in/at), 〜に対して/〜に対する (toward/against), 〜にとって (for/from the perspective of), and 〜として (as/in the capacity of).

HSK 1 | noun | cat

Complete Sindarin number system: cardinal numbers 1–1000, ordinals 1st–10th, counting, multiples, arithmetic expressions, and attested number words from Tolkien.

HSK 5 | adjective / verb | clear and unambiguous; to make something explicitly clear

Mastering 之、乎、者、也 and the grammar of classical Chinese in modern scholarly and literary contexts.

技術 (ぎじゅつ / gijutsu): technology, skill. N4 level Japanese vocabulary.

HSK 6 | n | the intrinsic qualities, depth, or connotation of a person, concept, or work

HSK 4 | adjective | having a quality or character that belongs to no other person or thing

Learn 〜べく (formal purpose) and 〜べきだ/べきではない (moral/logical obligation) in formal Japanese writing and speech.

HSK 4 | adjective | having all necessary parts and nothing missing or damaged

JLPT N4 kanji 路 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

HSK 4 | verb | shielding someone or something from harm

HSK 5 | adjective | having a quality or style that belongs only to itself; unique

ずっと (ずっと / zutto): all along, continuously. N4 level Japanese vocabulary.

HSK 5 | verb | to refute forcefully; to rebuke

HSK 4 | adjective | diligent, hardworking

HSK 4 | noun / adjective | science; or being scientific and systematic

HSK 1 | adverb/noun | the day before today

Common Japanese sentence patterns organized by JLPT level N5 through N1, with structure, usage notes, and example sentences for each pattern.

HSK 3 | verb/noun | to make a request or an appeal

We are given a collection of exams, each with two relevant days. The official schedule assigns exam i a day ai, but the student has a special agreement allowing him to take it earlier on day bi, where bi < ai.

HSK 3 | adj/noun | polite behavior or manners

HSK 1 | preposition | indicates the starting point of movement, time, or origin

川 (sen/kawa): river. JLPT N5 kanji.

N1 grammar pattern 〜てならない: expressing deep, spontaneous, involuntary feelings that cannot be otherwise. Literary register; contrasts with 〜てたまらない and 〜てしかたがない.

HSK 3 | conjunction | introduces the single condition that is the only exception to a rule or the only way an outcome can occur

HSK 4 | verb/noun | to arrange people or resources into a structured whole; a group with a shared purpose

Learn 〜ざるを得ない to express unavoidable obligation — you have no choice but to do something, despite reluctance.

HSK 2 | conjunction | presents alternatives in a question; contrast with 或者 for statements

HSK 5 | noun | the capacity or power to have an effect on others' behavior or thinking

HSK 4 | noun | a specific location or space for a particular purpose

HSK 1 | noun | a calendar month; also the word for the moon

HSK 3 | verb | to create or found something new

Learn 〜に伴い and 〜に伴って to express simultaneous or consequential change accompanying a main process or event.

HSK 1 | verb, noun | to stand, a stop or station

夜 (ya/yoru): night. JLPT N5 kanji.

Mastering the rhetoric of 答辩: presenting, fielding challenges, and closing arguments in Chinese academic and professional oral defense.

HSK 4 | adjective / adverb | relative; in comparison to something else

HSK 3 | adjective | interesting, fun, amusing

Develop the vocabulary and analytical grammar to discuss Chinese literary works, artistic movements, and aesthetic criticism at the B2 level.

HSK 6 | verb | to provide a brief but comprehensive overview of a topic

HSK 4 | verb/noun | to establish with certainty that something is true or agreed upon

HSK 4 | verb | to find a solution or resolve a problem

HSK 4 | noun | a legally binding written agreement between parties

Express comparisons of superiority, inferiority, equality, and progressive change using pli, malplej, same kiel, and related structures.

We are asked to calculate the sum of all integers $x$ that satisfy a pair of modular conditions with respect to two given integers $a$ and $b$.

HSK 4 | adjective / noun | confident; self-confident; confidence

HSK 3 | verb | to send, to emit, to issue, to develop — multi-meaning character

HSK 5 | noun | psychological counseling; mental health consultation

HSK 1 | verb | to write characters, text, or content

HSK 5 | verb/noun | official supervision and control by a regulatory authority

HSK 4 | conjunction / preposition | indicating cause or reason

HSK 4 | verb | communicating thoughts, feelings, or ideas

Learn three conditional structures: 如果...就 for general conditions, 只要...就 for sufficiency, and 只有...才 for necessity.

HSK 5 | discourse marker | in summary, to summarise what has been said above

Learn to recognize and translate result (consecutive) clauses and indirect questions in classical Latin.

HSK 5 | noun | typhoon, tropical cyclone

足 (foot, leg): 7 strokes, JLPT N5. On: ソク. Kun: あし、た-りる.

Learn how to use 〜てしかたがない (te shikataganai) to express uncontrollable feelings or irresistible urges — 'can't help but ~; irresistibly ~.' Includes structure, nuance, examples, and comparisons.

HSK 5 | verb | to plan carefully and strategically; to devise a scheme

Learn the vocabulary, structures, and conventions of formal written Esperanto for letters, reports, and official contexts.

HSK 3 | noun | medicine, medication, drug

HSK 3 | verb | to accept, to receive, to take in willingly

HSK 5 | verb/adjective | to organize multiple parts to work together; well-balanced and harmonious

HSK 5 | noun/adjective | the relationship between living organisms and their environment

HSK 4 | adjective | having a sharp, burning flavor from spices or chili

HSK 5 | noun | a legal proceeding; bringing a case to court

HSK 3 | noun | task, mission, assignment — something assigned or required to be done

HSK 2 | noun | money, currency, or a sum of money

HSK 2 | verb | to feel or think based on personal impression; contrast with 认为 for reasoned opinion

HSK 3 | adverb | indicates that something happens after a specific event or time

HSK 4 | conjunction / adverb | in short; in summary; in a word

HSK 4 | noun | a formal gathering for discussion or decision-making

HSK 3 | noun | a section or component of a larger whole

Master Esperanto's 28-letter phonemic alphabet, including the six diacritic letters and the X-system alternative.

三 (three): 3 strokes, JLPT N5. On: サン. Kun: み、み-つ、みっ-つ.

HSK 4 | verb/noun | to have a clear understanding of something through learning or inquiry

Learn the systematic ki- (question), ti- (demonstrative), and i- (indefinite) correlative series in Esperanto.

HSK 5 | noun | cloud computing; internet-based computing services

HSK 3 | noun/adjective/adverb | the natural world; being natural or obvious

HSK 3 | conjunction | no matter what/how/who — used in 不管...都/也 pattern

HSK 3 | conjunction | since, now that, given that — accepts a premise and draws a conclusion from it