buy有很多种表达，我们来一个个学吧！I don't buy it 我不认同Have you read his proposal?-Yes, but actually I don't buy it.你看到他计划书了吗？看了，但是我不太认同不想买就可以说“I don't want to buy sth”，如果像上面这样说不认同人家，就有种挑衅的意味了买某个物件时，直接用buy+物就行buy at 以某特殊价格买My goal is to buy the ticket at 380 and sell at 1000.I don't buy it！ 我想以380的价格买进门票，然后1000高价卖出去我不认可你这想法！！buy in1） 商业投资，大宗买入I will not buy in this new company.我不会在这家新公司投钱的2）认可；相信（某人）Obviously his boss doesn't buy in him because of his limited English level.很显然，他的老板不认可他，因为他英语太差了