I have a lot of work to do today.

今天我有很多工作要做。

I'm busy now.

现在我很忙。



I busied myself (in) cleaning rooms yesterday.

昨天我忙于打扫房间。



He is engaged in his business.

他忙于他的生意。



Joe was on the job all the time．

乔一直在工作。



We are working day and night to achive the poject.

我们日以继日地工作来完成那个项目。



The rush at the end of the month is just over.

繁忙的月终工作已告一段落。



I've never seen such a hive of industry.

我从未见过这么忙碌的工业区。



Then it'll be another big day.

这样又将是个忙碌的日子。