He worked hard enough.

他工作得足够努力。

youdao

He worked hard for his dough.

他为了赚钱而努力工作。

《柯林斯英汉双解大词典》

Although he worked hard, failure was all that he had seen.

虽然他很努力工作，但是他失败了。

youdao

He said he became successful because he worked hard to make his dreams come true.

VOA: special.2011.01.07

He worked hard. In time,he earned enough money to take control of an iron factory.

VOA: special.2010.02.25

He worked hard at training his eye and brain to tell the correct distance.

VOA: special.2009.03.18

In America, anyone could carve out a better life for himself if he worked hard.

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Pervez Musharraf ousted him in a 1999 coup, he worked hard toward a detente with New Delhi.

WSJ: Sharif Eyes Improved U.S.-Pakistan Ties

For 4 long years he worked hard for the Fortune 500 company while working on his startup.

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