如果你忙，我就给你的手机留言。

If you're busy, I'll leave a message on your mobile.

youdao

如果你忙，明天就不必来了。

You needn't come tomorrow if you are busy.

youdao

佩雷蒂说：“所以如果你为印刷品多付了钱，你可能会感觉自己帮了忙。”

"So if you're overpaying for print, you could feel like you were helping," Peretti said.

youdao

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