1·Children don't complete their set of 20 baby teeth until they are two to three years old.
孩子到两三岁时才长齐20颗乳牙。
—— 《柯林斯英汉双解大词典》
2·Should sealants be put on baby teeth?
乳牙也应该涂保护胶吗？
3·Natural protection for children's baby teeth.
儿童乳牙的天然保护。
4·I never realized that baby teeth are so important.
我过去一直没有认识到乳牙是这么重要。
5·Did he lose any baby teeth because of decay or infection?
他有没有因为蛀牙或感染而脱落乳牙？
6·Her bones are like those of a ten-year-old, but she still has her baby teeth.
她的骨骼像10岁的孩子大的，但她依然没有换掉乳牙。
7·I think it should not be any major problems, perhaps the baby teeth to symptoms.
我觉得应该不是什么大问题，或许是孩子要出牙的症状。
8·A few of them had a complete set of original baby teeth, while others had gaps where teeth had fallen out.
少数几个有一副完整的乳牙，其他人牙齿脱落的地方露出牙缝。
9·Baby teeth won't fall out until your child's permanent teeth are ready to come in, beginning around age 6.
大概到6岁左右，宝宝的恒牙开始长出来，这时乳牙才会脱落。
10·Early loss of baby teeth due to decay or infection, may cause primary teeth to shift to fill the gap.
因为腐蚀或感染造成的婴儿牙齿的缺失会导致乳牙移位以填补缺口。