(informal, chiefly N. Amer.)meet for lunch
(非正式，主北美)一起吃午餐
(informal)temporarily not in command of one's mental faculties
(非正式)心不在焉的，做白日梦的；发疯的；愚蠢的
(proverb)it isn't possible to get something for nothing
(谚)天下没有免费的午餐
Not in touch with the real world; crazy.
做白日梦的：与真实世界没关系的；疯狂的