为什么英语对话里不说I’ll buy it.却说I'll take it.

为什么英语对话里不说I’ll buy it.却说I'll take it. i'll buy it与i'll take it 我将买它 用英语翻译是I'll take it ,为什么不是I'll buy it I’ll take it 英语 i'll (take)it.为什么不是buy?get? I'll take it . I'll take it I'll take it.是什么意思 I'll take it thanks The CD is very cheap ,i 'll take it .为什么此处take 不能换成buy 类似的,F I,ll take it.同义句是什么? I'll Take It from You 歌词