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1234大兄弟
要严谨,必须表达清楚：In order to realize the anticipated objective,the result is assessed by basing on some of the performances in accordance with the behavior of A in B.
Rachelchel
“他一定是疯了”用英语表达是：He must be mad.must be 表示“一定是”，mad 的意思是“疯的”。
suibianlaidian
“他一定是疯了”用英语表达是：He must be crazy。望采纳，谢谢。
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