以下为句子列表：
英文: I'llis a contraction of I will.
中文: “I'll”是“I will”的缩写。
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英文: A spasm is a spontaneous, abnormal contraction of a muscle. When it occurs in the back near the spinal cord or the nerve roots, it can be very painful.
中文: 所谓背部痉挛是背部肌肉的突发非正常收缩。如果正好发生在脊椎或神经附近的话会非常痛苦。
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英文: Added melt compensates for the first part, but the contraction during cooling in the solid state must be compensated by oversized dimensions.
中文: 第一次增加熔化金属补偿，但是固态冷却过程中的补偿就要靠加大尺寸。
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英文: Adenosine triphosphate:an adenosine-derived nucleotide, C10H16N5O13P3, that supplies large amounts of energy to cells for various biochemical processes, including muscle contraction and sugar metabolism, through its hydrolysis to ADP.
中文: 三磷酸腺苷：一种由腺苷衍生的核苷酸c10h16n5o13p3，通过它的水解作用到二磷酸腺苷可为细胞进行各类生化过程提供大量能量，包括肌肉收缩及糖份新陈代谢。
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英文: An orgasm lasts approximately 3 to 10 seconds, and the orgasmic contraction of both men and women occur at intervals of less than a second each.
中文: 性高潮会持续3至10秒，男性或女性的性高潮肌肉收缩状态每次所间隔的时间不会超过一秒。
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