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- He drop out because of the pressure. 由于校规很严，所以他退学了。
- Kevin is dropping out of school. 凯文正准备从学校退学。
- Students are often forced to drop out of school. 是学生的，不得不辍学，上班妇女，她的职业就将遭受打击。
- They saw something drop out of his pocket. 他们看见一样东西从他口袋里掉了出来。
- She has dropped out in the middle of the race. 她中途退出比赛。
- I shall drop out of the competition,shall not I? 我该退出竞赛，是不是?
- Peter dropped out before completing the race. 彼得在比赛还未结束时就退出了。
- As he picked up the envelope, a key dropped out. 他拣起信封时，一把钥匙掉了出来。
- As she picked up the envelope, a key dropped out. 她拾起信封时，一把钥匙掉了出来。
- I shall drop out of the competition,won't I ? 我该退出竞赛，是不是?
- I should drop out of the competition,shouldn't I? 我该退出竞赛，是不是?
- The necrotic tissue may drop out. 坏死组织会脱落。
- She dropped out of school to become a waitress. 她退学去当女侍应生。
- One of my teeth has dropped out. 我的一只牙齿掉了。
- Luckily, I dropped out before the deal turned sour. 很幸运的,在交易变坏前我已退出了。
- Why did you drop out in the middle of the marathon? 为什么你在马拉松赛跑途中退出?
- If you do not like the idea, drop out. 如果你不赞成这个计划，你可以退出。
- The netrotic tissue may drop out. 坏死组织会脱落。
- Why cannot the water in funnel drop out? 漏斗里的水为什么不会流下去?
- His parents want him to drop out of school. 他的父母想要他辍学。
