1、Her long illness caused her to drop behind the rest of the class.
她長期生病，所以落后于別的同學。

2、Ken leaped and raced across a few rooftops, managing to drop behind him.
肯恩跳躍而且比賽橫過一些屋頂，設法在他后面降低。

3、Herr long illness caused her to drop behind the rest of the class.
她長期生病使她落后于班上的其他同學。

4、We cannot afford to drop behind our competitors.
我們可擔當不起落后于競爭對手的后果。

drop behind翻譯