Brook levin heads a preschool in broomall , pennsylvania .

布鲁克莱文办有一所幼儿园在布鲁莫尔宾夕法尼亚州。

Our son 's preschool teacher gave us the grim news .

我们儿子的学前老师告诉了我们这一糟糕的消息。

Or the result of some sort of preschool peer-pressure ?

或者是学龄前儿童同辈压力的排序结果？

Should you let your three-year-old wear her child-friendly nail polish to preschool ?

你应该让你三岁的女儿涂上儿童无害的指甲油去幼儿园吗？

I once interned preschool classrooms observing the children .

我曾被关在幼儿园的教师里观察孩子们的行为。