All insects also lay eggs. But these eggs do not produce perfect insects.

所有的昆虫都会“产卵”，但这些虫卵可不会孵出成虫。

The perfect insect never grows bigger; but the little spiders grow so fast for a time that they have to throw off their leathery skins, and grow larger ones every few weeks.

昆虫成虫身体不会生长变大, 但是小蜘蛛的生长速度却快, 经过一段时间之后就要蜕皮, 每过几周时间身体就会长大一些。