primary teeth

常见例句

While primary teeth will at one stage be replaced by the permanent teeth, they are very important for several reasons including chewing and speech.
而乳牙会在某一阶段改为由恒牙，他们是很重要的原因有几个，包括咀嚼和讲话。
At the time of birth, the crowns of the primary teeth (baby teeth) are almost complete and the chewing surfaces of the permanent molars are forming.
在出生的时候，第一套牙（乳牙）的牙冠已基本发育完全，恒磨牙的咀嚼面也已形成。
While primary teeth will at one stage be replaced by the permanent teeth, they are very important for several reasons – including chewing and speech.
虽然乳牙会在某一阶段全部更换为恒牙，他们是非常重要的几个原因，包括槟榔、讲话。