例句
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Jobless and penniless, he had to sleep rough in the fields for several months.
他既无工作又无钱, 只好在野外露宿数月。
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These rough roads soon wore the tread of motorcycle tires off.
这些崎岖不平的路很快就把摩托车轮胎磨平了。
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At room temperature,the thermal conductivity of a diamond is about six times higher than that of a piece of copper.
在室温下,钻石的热传导律比铜块高六倍左右。
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I hope the wind keeps down, or the sea will be too rough for sailing.
希望风不要再大了, 否则, 海面浪涛汹涌, 无法航行。
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He files away the rough edges.
他把粗毛边锉去。
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Should the weather be rough, we won’t be able to go riding.
万一是狂风暴雨的天气, 我们就不能去骑马。
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diamond riveting
菱形铆接
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The toddlers often join in the rough and tumble of the older children’s games.
刚会走路的小孩经常跟着大一些的孩子一起打打闹闹。
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He is a diamond of the first water, always obliging.
他是第一流的好人, 总是乐于帮助别人。
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The diamond on her finger twinkled in the fire-light.
她手指上戴的钻石在火光下闪闪发亮。