I had to quit diving professionally after the Olympics. (Para.10)
Meaning: I had to give up diving as a professional job after the Olympics.
quit: stop (doing sth.) and leave
Steve quit when he realized that he could not win. 知道自己不能獲勝,史蒂夫退出了比賽。
Others made critical comments about him because he quit his duties. 他因為放棄自己的責任而受到批評。
adj. 批評的,決定性的,危險的,挑剔的
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