1.Pigs might fly.2.When p

1.Pigs might fly.2.When pigs fly.3.Drive one's pigs to marke

3个回答

1、奇迹可能会发生.2、不可能的事“除非天上掉馅饼”.eg：,"Do you think Mary will quit her job now that she's pregnant?"另一个人就回答,"Yeah,when pigs fly!There is no way she is giving up her career!"当...