例句：
You should not speak ill of your friend。你不应该说你朋友的坏话。
He kept on working when he was ill。他生病了却还坚持工作。
Mary seems to be getting worse。玛丽的病情好像更严重了。
The environment here is getting worse and worse。这里的'环境越来越恶劣了。
This is the worst time。这已经是最糟糕的时候了。
I've prepared for the worst。我已经做好了最坏的打算。
