由于存在计算时间和尺寸的限制,除非使用高性能计算机,否则很难用分子动力学在较短的时间内对含有超过105个原子的构件进行模拟。
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Some people find retiring difficult, but he have take it all in his stride.
有的人觉得很难适应退休后的生活, 但他却能安之若素.
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Some people find retiring difficult, but he has all in his stride.
有的人觉得很难适应退休后的生活, 但是他却能安之若素.
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但这样的写作,大都呈现为长期积蓄、骤然喷发的一次性或阶段性,很难持续以继。
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The girls finally approach the checkout counter and I can barely hear the conversation.
这两个女孩最后去柜台结账,然后我也很难听到她们讲什么.
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Clew is pestered each other, main threads affair is found in time very hard also.
线索互相纠缠, 头绪也很难及时找到.
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None of those childish kebab stories you get in so many travel books these days.
这年头你很难在旅游书里看到那些孩子气的烤肉串的故事了.
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