恒 BABY

例句

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1.

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。

2.

Palmer notes that tooth decay in baby teeth can result in damage to the developing crowns of the permanent teeth developing below them .

Palmer 指出婴儿牙齿蛀牙可能会损害它们下方的恒牙牙冠的生长。

3.