经过艰苦地工作,她成为一位伟大的作家。
抚养一个孩子无可否认地是项艰苦的工作。
他毫无怨言地做这项艰苦的工作。
他把他的成功更多地归因于好运气而不是多年的艰苦工作。
He owes his success more to good luck than to his years of hard work.
他把他的成功更多地归因于好运气而不是多年的艰苦工作。
He owes his success more to good luck than to his years of hard work.
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