Q
　　1. quality   n. 质量；品质；性格
　　a watch of high quality
　　2. quantity  n. 数量
　　a large quantity of = large quantities of+ 可数名词、不可数名词
　　Large quantities of water are polluted in that area.
　　A large quantity of water is badly needed here.
　　3. question   vt. 提问，询问，质问      n. 问题，疑问
　　He was questioned by the police.
　　out of question 没问题   out of the question  不可能
　　4. ●quit  quit quit  quitted quitted
　　1).If I don't get more money, I'll quit .
　　2).He quit the show last year because of bad health.
　　3).I've quit smoking.
　　4).We decided it was time to quit the city.

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