You learn mathematical things, you learn human things, sometimes you want to laugh, sometimes you want to cry.
从中你学到了数学知识，也学到人文思想；看着这数字，有时你想笑，有时却想哭。
When you first learn to ride your bike you may fall over and over. Bruise a knee and cry a bit.
我们小时候刚开始学自行车时，可能会一次次跌倒，摔破了膝盖，还会抹眼泪。
When you first learn to ride your bike you may fall over and over. Bruise a knee and cry a bit.
我们小时候刚开始学自行车时，可能会一次次跌倒，摔破了膝盖，还会抹眼泪。
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