【汉译英】除非你知道答案,否则你必须努力学习才能通过考试!

You will have to work hard to pass the exams unless you know the answers.
以上语序经过了调整 更符合英语的习惯

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你没毛病吧？

You must study hard to pass the exam ,unless you know the answers.

Unless you know the answers, or else you must study hard to pass the exam!