a man and a 是俚语么?

a man and a 是俚语么? "cost an arm and a leg"是俚语吗?俚语在现在欧美国家用的多吗? 俚语by a A Man and a Woman 歌词 Once a man and twice a child. between a man and a woman 歌词 kings and queens 俚语么? make a wise man smile and a foolish man cry 是a man还是an man A man cannot spin and reel at 关于two and a half man and a young man is beside