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He found difficulty in thinking of himself as rash -- he had incurred this reproach so rarely.
他很难想象自己是个鲁莽的人 — 他受到这种指责太少了.
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But reading the book," Battle Hymn of the Tiger Mother," it can be hard to tell when she is kidding.
但是如果翻开她的书《虎妈战歌》，我们很难理解她是不是在开玩笑。
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People rarely reach an absolute consensus on such a controversial issue.
对于这种极具争议的话题,我们很难作出绝对的回答.
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单晶铜线材主要是采用拉模拉丝方式生产，很难在生产现场实时测量其直径。
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Whether Windows Phone [ will be] successful is difficult to say – it has a very small market share.
windows phone是否会成功很难说，其市场份额非常小。
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The phase mismatch error is the main error source of sound intensity measurement system.
相位失配误差是声强测量系统的主要误差源,仅靠提高仪器的精度很难消除这一误差.
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