For instance, let me go ahead and open up masquerade, and I'll need Barry to help here, if you don't mind. Let me hit play.

比方，让我上前揭开面具，如果你不介意的话我需要Barry帮下忙，我玩下。

哈佛公开课 - 计算机科学课程节选

If they can't help you out, then you go to your professor and you ask them.

如果他们帮不上忙，你就去找教授，问教授。

学习和交际都重要 - SpeakingMax英语口语达人