a breath of fresh air
一股清风A: He has a girlfriend already.
A: 他已经有女朋友了。B: You're kidding!He just broke up with Ann.
B:别开玩笑了,他刚和安分手。
A: His new girlfriend is a far cry from 's like a breath of fresh air.
A:他的新女友和安大不相同,她像一股清风,令人心神一爽。B: I hope l will meet her soon.
B:我希望能很快见到她。