1、kids是kid的名词复数，是小孩、年轻人的意思。看例句They've got three kids。他们有三个孩子。
2、He took the kids to the park while I was working。我工作时把孩子们带到公园去了。
3、He was only 16，just a kid really。他才十六岁，还是个毛头小子。What's up，kid？年轻人，怎么了？
4、kid sister/brother是某人的妹妹/弟弟的意思，例如My kid sister woke up and started crying。我妹妹醒了接着哭了起来。
