讲解文本：

have a lot on one's mind 有事在心上，有很多烦心事

You look like you have a lot on your mind.

你看起来有很多心事啊。

I know you have a lot on your mind, but we still have work to do.

我知道你有很多烦心事，但我们还有许多工作要做。

疯狂练习吧!