Definition
长效 (cháng xiào) means 'long-acting' or 'sustained effect', used especially for medications, policies, or products designed to remain effective over time. It differs from 持久 (chí jiǔ, general 'enduring') by focusing on the continued effectiveness of a treatment or measure, and from 长期 (cháng qī, 'long-term' as a timeframe) by emphasizing the effect itself rather than the duration.
noun
long-term effectivenesssustained effect
adjective
long-actinglong-lastingsustained-release
Easily confused
- 畅销chàng xiāosound-aliketo sell well; to be a bestseller
Examples
- 长效。Yīshēng jiànyì shǐyòng cháng xiào yàowù lái kòngzhì mànxìng bìng.The doctor recommends using long-acting medication to control chronic diseases.
- 长效。Zhèngfǔ zhèngzài jiànlì cháng xiào de huánbǎo jiānguǎn jīzhì.The government is establishing a long-term effective environmental supervision mechanism.
- 长效。Zhè kuǎn cháng xiào fángshàishuāng néng chíxù bǎohù pífū bā xiǎoshí.This long-lasting sunscreen can continuously protect the skin for eight hours.
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