fall down on的用法和樣例：
例句
用作及物動詞 (vt.)
- Karsh says he has found that people who have results below a certain score don't do well on the job.
卡爾西表示，他發現在測試中得分低於一定水平的應聘者確實幹不好這份工作。
辭彙搭配
- fall down on the job 沒有把工作做好...
