His hands were rough and callused, from years of karate practice.

他的双手由于多年的空手道练习，粗糙而布满老茧。

《柯林斯英汉双解大词典》

You might be surprised to hear that the number of people sleeping rough in London has doubled in the last five years and has increased by 30% across the rest of the country during the last two years.

听到这些你可能会很惊讶，过去五年中伦敦露宿街头的人数已经翻倍，而且近两年全国其他地方的露宿人数增加了30%。

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And as I've found over the years, manual processes are error prone and tend to be forgotten when the going gets rough.

正如我多年所观察到的，手工过程很容易出错，如果工作紧张，就会忘记自己正在做什么。

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It has been a bumpy ride, with some great years (like 2009, when it gained more than 63%), and some rough years.

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Usually the king of both the console and handheld market, Nintendo has seen a rough couple of years since the DS and Wii took the sales charts by storm.

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"It has been a rough few years for bay grasses, and we were not terribly surprised, " said Bob Orth, a Virginia Institute of Marine Science researcher who coordinates the survey.

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