cow
..till(until)the cows come home
用：表示由于喜欢口f以不厌其烦地做或等待。
意：无限期地;无休止地;永远地
My grandma hasn't rnarsy subjects of conversation, but if you let her, she'll talk about her ynunger days till the cows came horne_
我奶奶话题倒不多，可你要让她谈起来，她会没完没了地谈她年轻时候的事。
You can wait till the cows come home but I won't change my mind!
你可以一直等下去，但我不会改变主意的。
