fell behind

• v. 落后；拖欠

fell behind的用法和样例：

例句

用作动词 (v.)

1. Soon he fell behind in the race.
   不久他就跑在后头了。
2. He fell behind, so he had to quicken up his pace to catch up with us.
   他落在后面，所以他必须加快步子赶上我们。
3. He could have finished it on schedule, but somehow he fell behind.
   他原本能按预定进度做完这件事的，但不知怎地却落后了。
4. The woman fell behind in her rent payments.
   这个女人拖欠了租金。