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1.drop out 退出
He'd dropped out of high school at the age of 16.
他16岁时就从高中退学了。
2.discourage someone from doing 阻拦
typhoons that discouraged shopping and leisure activities.
打消购物和休闲活动的念头的数起台风。
3.obsess about something 困扰；心神不宁
A string of scandals is obsessing America.
一系列丑闻在困扰着美国。
