In the professional theatre, there is a tremendous need to prove that you're a pro.

在专业剧院里，很有必要证明自己是个专业人士。

Motherhood has both its pros and cons.

做母亲有利也有弊。

Americans have always been very pro business, pro competition, pro free market.

美国人一向很支持商业、竞争和自由市场。