英语题请教一下
同义句改写： If you don't think hard,you won't find the answer. ___ ___ , ___you won't find the answer.
If you don't think hard,you won't find the answer. Ｔｈｉｎｋ ｈａｒｄ , ｏｒ you won't find the answer. Ｔｈｉｎｋ ｈａｒｄ，ａｎｄ ｙｏｕ ｗｉｌｌ ｆｉｎｄ ｔｈｅ ａｎｓｗｅｒ。
Think hard,or....原句是你不...就不能...改后成你应该....，否则就不能...
think hard,or....or在这里是否则的意思
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