Fire away!

用:这是对想问问题的人说的话。
意:问吧!讲吧!说吧!
例:Fire away. Ask me anything you like.
问吧,你想问什么就问什么。

All right, now I' m ready to answer your question. Fire away!
好啦。我现在准备好回答你的问题了:问吧!