So, so far, we've been working pretty hard and we haven't, I guess, learned a lot, we've just kind of solved the thing out.

到目前为止我们的计算真的很繁琐,但是我觉得我们没学到什么东西呢,我们只是解出了一道题罢了

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You've been working hard all day and you just can't push it anymore.

你已经用功了一整天，你累得完全不想再动弹了。

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