labor-intensive
back-breaking 这是高级词汇
有例句哦:It's incredibly gratifying, although very labor-intensive.
这的确是非常令人满足的,虽然也很辛苦。
他们中有些人工作非常辛苦你知道吗?
Well some of them work very hard you know.
公司所有的员工都这样没日没夜地干活,非常辛苦。
All employees in the company work day and night, and take great pains.
那真是个很长的比赛,为了适应,我训练得非常非常辛苦。
It was a very long race and I trained very, very hard for fit.
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