she studies hard
她学习很努力
以上为机器翻译结果，长、整句建议使用 人工翻译 。
She studies hard for the test on Sunday.
她为了周日的考试努力学习。
youdao
Because she studies hard.
因为她用功念书。
It is good that she studies hard.
她努力学习，这很好。
She visits the Brain Science Lab at Indiana University, which studies the hard- swimming members of the US Masters: men and women who swim 3, 500-5, 000 metres three to five times a week, sometimes for decades on end.
ECONOMIST: Lynn Sherr��s new book offers all the skinny on dipping
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