常見例句雙語例句Expectant mothers may not know that what they eat affects the tooth development of the fetus.準(zhǔn)媽媽也許不知道她們所喫的食物會(huì)影響到胎兒的牙齒發(fā)育。However, overfluoridating children can lead to fluorosis -- disruption in enamel formation during tooth development.不過，氟過量會(huì)導(dǎo)致兒童氟中毒——在牙齒發(fā)育形成牙釉質(zhì)時(shí)造成破壞。Until now it was unknown whether the variations reflected evolutionary changes, different stages of tooth development, or even teeth from different positions in the mouth.直到今天，人們?nèi)匀徊恢朗遣皇歉鞣N變異反映了物種縯變以及牙齒的不同發(fā)展堦段，甚至是牙齒在嘴內(nèi)的不同位置。treasure.1x1y.com.cn權(quán)威例句Though thousands of genes are involved in the development of an organ such as a tooth, these genes are switched on in a cascade, with the activity of one triggering the activation of the next.ECONOMIST: It may soon be possible for adults to grow new teeth 返回 tooth development