if

用动词命令式表达suppose

• 要是来不及怎么办？

  What if there isn't enough time?

• 要是这样，就不成问题了。

  If it's like this, there won't be a problem.

• 要是你处在我的地位，你怎样决定呢？

  Suppose you were in my place, what would you decide?