1. Money was a primal necessity to them.
   对于他们,钱是主要的需要。
2. You must understand the necessity of education.
   你必须懂得教育的必要性。
3. He urged the necessity for immediate action.
   他强烈要求立即采取行动。
4. Provide the bare necessities of life, especially food; keep away hunger.
   供给生活必需品, 特别是食物, 以免于饥饿。
5. Telephone is now a household necessity.
   现在电话是一种家庭必需品。
6. Water is a necessity of life.
   水是生命必不可少的。
7. The necessity for nuclear nonproliferation seems clear.
   防止核扩散的必要性似乎清清楚楚。
8. Food and clothing are necessities of life.
   食物和衣服都是生活的必需品。
9. I was compelled to do so by absolute necessity.
   我因绝对的需要， 被迫这样做的。
10. We must all, of necessity, die sooner or later.
    我们大家迟早都会死。
11. Being a professional actor of necessity means working nights and Sundays.
    作为职业演员必然意味着晚上和星期日要工作。
12. Necessity is the mother of invention.
    需要是发明之母。
13. Objective To investigate the particularity of therapy of bilateral nephroblastoma (BWT)and necessity of lifetime follow-up.
    目的探讨双侧肾母细胞瘤(BWT)治疗方法的特殊性及终生随诊的必要性。
14. Except for what he spent on haircuts,books and daily necessities he never wasted a penny.
    除了理发、买书和必要的日用品之外,他从不浪费一分钱。
15. She is now in necessity.
    她现在很穷。
16. Necessity caused me to come.
    我不得不来。
17. His identity of a foreign official exempted him from the customs duties for these basic necessities.
    "他是个外交官,因而这些日用品免除关税。"
18. Coal mine rockbolt shoring current situation,necessity and significance having discussed rockbolt shoring parameter optimization design combining with leaping forward.
    结合跃进煤矿锚杆支护现状,探讨了锚杆支护参数优化设计的必要性和重要性。
19. They also supply other daily necessities to the city population.
    他们也向城市居民提供其他日常必需品。
20. Prevents the breath myospasm to cause to suffocate, when necessity makes a great effort the tube incision, the intermittent positive pressure gives the oxygen.
    防止呼吸肌痉挛导致窒息，必要时作气管切开，间歇正压给氧。

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