____: (used to make a suggestion about what to do) 怎么样
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____: v. give private lessons to (sb.) 任家庭教师教(某人),辅导
____: become dominant 变成主要的,取而代之
____: (infml) make an appearance; arrive 露面,出现
____: n. the feeling of being sorry for sb. who is in a bad situation 同情
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