完善 (wánshàn)

完善 describes the process of improving or perfecting something so that it approaches an ideal state, or describes something that is already complete and excellent.

Meanings

[verb] To improve, to perfect, to refine, to make more complete.
[adjective] Perfect, complete, well-developed, comprehensive.

Example Sentences

公司正在着手完善售后服务体系，以提升客户的整体满意度。 Gōngsī zhèngzài zhuóshǒu wánshàn shòuhòu fúwù tǐxì, yǐ tíshēng kèhù de zhěngtǐ mǎnyìdù. The company is working to improve its after-sales service system to enhance overall customer satisfaction.

这部法律还不够完善，仍有许多细节需要进一步修订和补充。 Zhè bù fǎlǜ hái bùgòu wánshàn, réng yǒu xǔduō xìjié xūyào jìnyībù xiūdìng hé bǔchōng. This law is not yet complete enough; many details still need further revision and supplementation.

他们花了数年时间完善这套人工智能算法，使其能够处理更复杂的任务。 Tāmen huā le shù nián shíjiān wánshàn zhè tào réngōng zhìnéng suànfǎ, shǐ qí nénggòu chǔlǐ gèng fùzá de rènwu. They spent years perfecting this artificial intelligence algorithm, enabling it to handle more complex tasks.

一个完善的社会保障制度是衡量一个国家发展水平的重要指标。 Yī gè wánshàn de shèhuì bǎozhàng zhìdù shì héngliáng yī gè guójiā fāzhǎn shuǐpíng de zhòngyào zhǐbiāo. A well-developed social security system is an important indicator for measuring a country's level of development.

Collocations

Collocation	Meaning
完善制度	to improve the system
完善机制	to refine the mechanism
不够完善	not perfect enough
逐步完善	to gradually improve
完善措施	to perfect measures

Usage Notes

完善 is more formal than 改善 (to improve/ameliorate). While 改善 suggests making something better from a poor state, 完善 implies bringing something from a functional but imperfect state toward completeness. It is frequently used in policy, legal, and institutional language. As an adjective, 完善的 describes systems, mechanisms, or frameworks.

Memory Hook

完 means "complete/finished" and 善 means "good/virtuous" — something that is complete and good has reached the state of 完善.