这种药物的功效仍需通过长期临床观察来验证。Zhè zhǒng yàowù de gōngxiào réng xū tōngguò chángqī línchuáng guānchá lái yànzhèng.This medicine's efficacy still needs to be verified through long-term clinical observation.
这种茶据说有清热的功效。Zhè zhǒng chá jùshuō yǒu qīngrè de gōngxiào.This tea is said to have a cooling effect.
这款面霜的功效并没有广告说的那么好。Zhè kuǎn miànshuāng de gōngxiào bìng méiyǒu guǎnggào shuō de nàme hǎo.The effect of this face cream is not as good as the advert claims.