如果它从窗户进来，爬到他身后，用毒牙攻击他，那该怎么办呢？

What if it slithered through the window, instead crept up behind him, and struck him with its venomous fangs?

youdao

如果XM报告了错误，那该怎么办呢？

What if XM reports an error?

youdao

乙：哦，亲爱的，我都已经在外面了，那该怎么办呢？

Tat: Oh dear... What to do now that I'm out of the house?

youdao

Now what? Where can we go now?

那接下来呢,我们该怎么办

耶鲁公开课 - 博弈论课程节选