fall behind
第三人称
falls behind
现在进行时
falling behind
过去式
fell behind
过去完成时
fallen behind
1
落后, 跟不上
to fail to keep up in work, studies, or performance
- The company fell behind its competitors in AI research
该公司在人工智能研究方面落后于竞争对手。
- He began to fall behind in class after missing several lessons.
在错过几节课后，他开始在课堂上落后。
- We risk falling behind other nations in green tech.
我们有可能在绿色科技方面落后于其他国家。
- Try not to fall behind in your assignments.
尽量不要在你的作业中落后。
- Don't fall behind on your project deadlines.
不要在你的项目截止日期上落后。
2
拖欠付款, 积累债务
to owe money due to not paying when required
- They've fallen behind on their mortgage.
他们的房贷拖欠了。
- I'm starting to fall behind on credit card bills.
我开始在信用卡账单上落后了。
- She fell behind with her rent after losing her job.
她失业后拖欠了房租。
- We fell behind on utilities during the winter.
我们在冬天拖欠了公用事业费用。
- He's months behind on child support.
他在子女抚养费上拖欠了几个月。