
in your dreams 只有独立成句才表示“你做梦”;如果与其他成分结合成句,in your dream 就表示“在你的梦中”,in your dreams 就表示“在你们的梦中”:
Dave, buy you a car? In your dreams!
戴夫,给你买辆车?做你的白日梦吧!(剑桥高阶)
'I'll be a manager before I'm 30.' 'In your dreams.'
“我要在 30 岁前当经理。”“你做梦。”(牛津高阶)
'I'm going to ask her to go out with me.' 'In your dreams!'
“我要约她出来。”“做你的梦吧!”(朗文高阶)