take是拿的意思，而cost则是花费的意思，它们之间的区别可以从以下例子看出：
There are so many bicycle in our store, please tell me which one you like, it doesn't cost much, just take it. 我们店里有这么多自行车，请告诉我你喜欢哪一辆，不贵，拿去吧。
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