抗体 (kàngtǐ) — antibody
HSK 5 | noun | antibody; protein produced by the immune system to fight pathogens
抗体 (kàngtǐ)
抗体 refers to antibodies, which are proteins produced by the immune system in response to foreign substances such as bacteria, viruses, or vaccines, used to identify and neutralize these threats.
Meanings
- [noun] antibody (immunology); protein that fights pathogens
Example Sentences
接种疫苗后，人体会产生相应的抗体，从而对该病毒产生免疫力。 Jiēzhòng yìmiáo hòu, réntǐ huì chǎnshēng xiāngyìng de kàngtǐ, cóng ér duì gāi bìngdú chǎnshēng miǎnyì lì. After vaccination, the human body produces corresponding antibodies, thereby developing immunity to that virus.
研究人员正在开发一种基于单克隆抗体的新型癌症治疗方法。 Yánjiū rényuán zhèngzài kāifā yī zhǒng jīyú dān kèlóng kàngtǐ de xīnxíng áizhèng zhìliáo fāngfǎ. Researchers are developing a new cancer treatment method based on monoclonal antibodies.
血液检测可以测量体内的抗体水平，以评估一个人对某种疾病的免疫状况。 Xuèyè jiǎncè kěyǐ cèliáng tǐ nèi de kàngtǐ shuǐpíng, yǐ pínggū yī gè rén duì mǒu zhǒng jíbìng de miǎnyì zhuàngkuàng. Blood tests can measure the level of antibodies in the body to assess a person's immune status against a certain disease.
母乳中含有丰富的抗体，能为新生儿提供天然的免疫保护。 Mǔrǔ zhōng hányǒu fēngfù de kàngtǐ, néng wèi xīnshēng'ér tígōng tiānrán de miǎnyì bǎohù. Breast milk contains abundant antibodies that can provide natural immune protection for newborns.
这种新型病毒变异后，原有疫苗产生的抗体对其保护效果有所下降。 Zhè zhǒng xīnxíng bìngdú biànyì hòu, yuán yǒu yìmiáo chǎnshēng de kàngtǐ duì qí bǎohù xiàoguǒ yǒu suǒ xiàjiàng. After this new virus mutated, the protective effectiveness of antibodies produced by the original vaccine decreased.
科学家通过研究康复患者的血液，从中提取出有效的中和抗体，用于治疗重症患者。 Kēxuéjiā tōngguò yánjiū kāngfù huànzhě de xuèyè, cóng zhōng tíqǔ chū yǒuxiào de zhōnghé kàngtǐ, yòng yú zhìliáo zhòngzhèng huànzhě. Scientists studied the blood of recovered patients and extracted effective neutralizing antibodies from it to treat severely ill patients.
Collocations
| Collocation | Meaning |
|---|---|
| 产生抗体 | to produce antibodies |
| 抗体水平 | antibody level |
| 中和抗体 | neutralizing antibody |
| 单克隆抗体 | monoclonal antibody |
| 抗体检测 | antibody test |
| 抗体治疗 | antibody therapy |
Usage Notes
抗体 is a technical medical and biological term that became widely known during the COVID-19 pandemic. It is formed from 抗 (to resist/fight against) and 体 (body/substance). The related term 抗原 (antigen) refers to the foreign substance that triggers antibody production.
In everyday usage, 抗体 is most commonly heard in discussions about vaccines, immunity, and infections. The compound 中和抗体 (neutralizing antibody) is important in modern immunology and was frequently discussed during the pandemic.
Memory Hook
抗 (to resist/fight) + 体 (body/substance) — an antibody is a substance in the body that fights and resists foreign invaders.