1. Warm clothes are a must in the mountains.
   住山里必须备有厚衣服。
2. He must calculate the probability of failure.
   他必须计算一下失败的概率。
3. We must calculate on a long-term basis.
   我们要作长期打算。
4. A politician must be able to communicate.
   政治家必须善于表达自己的观点。
5. We must mix work with adequate rest.
   我们必须劳逸结合。
6. All bookings must be made by post.
   所有预约都必须用信函形式。
7. All booking must be made by post.
   所有的预订工作均可来信办理。
8. A teacher must not discriminate between pupils.
   老师对学生应当一视同仁。
9. You must comply with the library rules.
   遵守图书馆的规则。
10. Candidates must comply strictly with these instructions.
    候选人必须严格遵守这些指示。
11. We must coordinate our operations with theirs.
    我们必须使我们的军事行动和他们协调一致。
12. Any self-evolver must be a coyote trickster.
    所有自进化者必须是像土狼一样高明的魔术师。
13. You must be careful crossing the road.
    你过马路一定要当心。
14. The debt must be paid in full.
    债务必须全部付清。
15. Your deeds must answer to your words.
    你的言行应该一致。
16. We must not take combustible goods aboard.
    我们切不可带易燃物上车。
17. We must be prepared for all contingencies.
    "我们要作好各种准备,以防意外。"
18. The two ends must be bent outward.
    两端必须向外弯。
19. Everybody must be made to understand that.
    务必让每个人都懂得这一点。
20. An examiner must frame his question clearly.
    考官必须把考题表达清楚。

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