Take a moment and reflect upon this question.

花些时间思考这个问题。

I must reflect upon how to answer the question.

我必须考虑一下如何答复那个问题。

Your conduct will seriously reflect upon your future.

你的行为将严重影响你的未来。

Since then, I've been able to reflect upon my experience there.

此后，我得以有时间思考我在Myspace的经验和教训。

You may want to reflect upon how your words and actions affect others.

或许你应该仔细想想自己的言行对他人的影响哦。