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- The existence and uniqueness of the element of best approximation on sequentially weak compact convex set in the normed linear spaces are studied,the conclusion of which improves and generalizes the existing result of Erwin kreysziy. 研究了在严格凸赋范线性空间上无穷维弱列紧凸子集的最佳近似元的存在与唯一性，所得结论改进和推广了Erwin Kreysziy 等已有的结果。
- The spirit is willing but the flesh is weak. 心有余而力不足。
- The shock make me go all weak at the knee. 这件事把我吓得两腿发软。
- You must be weak in the head if you believe that. 你相信那件事可就太傻了。
- He cannot run because he has a weak heart. 他有心脏病，不能跑。
- Ok. Luxury, mid-size or compact? 好。是要豪华型、中型还是小型车？
- A fearful person is a weak person. 怕这怕那的人是软弱的人。
- The shock made me go all weak at the knees. 这件事把我吓得两腿发软。
- You can get the feel of a compact car in no time. 你很快就能把小型车摸清楚。
- His weak chest was a legacy of a childhood illness. 他那瘦弱的胸脯是儿时患病的后遗症。
- I appreciate his compact style of writing. 我欣赏他那简洁的文体。
- His uncle is a man of compact build. 他叔父身体结实。
- In a weak moment, I agreed to pay for her holiday. 我一时心软同意了支付她度假的费用。
- The compact disc is a miracle of modern technology. 激光唱片是当代技术的奇葩。
- He is weak with hunger, so I have to support him. 他饿得没有力气，我得搀着他。
- He pushed a weak student through the exam. 他帮助一位成绩差的学生通过了考试。
- He was too weak even to lift his hand. 他虚弱得连手都抬不起来。
- Her health varies from good to rather weak. 她的健康状况变化不定，有时良好，有时相当差。
- Weak foundations caused the house to subside. 由于地基不牢，这所房子已下陷。
- The patient is too weak to speak. 病人太衰弱了，不能说话。
