the different growth and developing stages

• 生长发育期

the different growth and developing stages的用法和样例：

例句

1. Because their bodies are developing, infants and young children are especially vulnerable to the poisons in secondhand smoke.
   由于婴儿和年幼的儿童正处在生长发育期，因此他们对二手烟中的毒物尤为敏感。