牙齿

shòu guò zhòng jī de yá chǐ kě néng huì biàn sè

受过重击的牙齿可能会变色。

A tooth which has been hit hard may discolour.

tā de yá chǐ jié bái zhěng qí

他的牙齿洁白整齐。

He has very white, even teeth.

táng guǒ duì yá chǐ yǒu hài

糖果对牙齿有害。

Sweets are bad for your teeth.

xiǎn lù yá chǐ

显露牙齿

show one's teeth

yá chǐ tuō luò

牙齿脱落

fallen teeth

ài hù yá chǐ

爱护牙齿

protect the health of one's teeth

sōng dòng de yá chǐ

松动的牙齿

loose tooth