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She said, "Although the work is hard, Shu embroidery stands for thousands of years of Sichuan culture. It is a symbol of Chinese culture as well."

她说：“虽然工作很辛苦，但蜀绣代表着几千年的四川文化，也是中国文化的象征。”

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Hard work is hard because you might fail.

努力工作难就难在于你可能会失败。

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But the work is hard. And getting all the oil from the seeds can be difficult.

VOA: special.2009.09.29

Mammon is the profiteer. Mammon is the goldsmith's son who wants to invest his talents with labor and with hard work in order to showa profit.

贪神是一位逐利者，他是一名金匠的儿子，想要,用自己的才智，劳动与汗水投资换取利润。

耶鲁公开课 - 弥尔顿课程节选

That is the hard work, and being focused, and having a little luck, of course.

当然这要靠努力、专注，还有一点点运气。

事业就是挑战 - SpeakingMax英语口语达人

Family caregivers have an immeasurable impact on the lives of those they assist, but their hours are long and their work is hard.

WHITEHOUSE: The White House

The authority recently took back the lido from a commercial operator but has said so much work is needed it is hard to predict when the pool might reopen.

BBC: Brighton council plans urgent Saltdean Lido repairs

Getting the various agencies to work together is hard.

ECONOMIST: Why France's unemployment is proving so intractable