B-11:be head over heels in love 坠入爱河
A:John doesn't look the same as before.
A: 约翰看起来和以前不一样了。
B: Can't you see he's head over heels in love?
B: 你看不出他已坠入爱河了吗?
A: Really? With whom?
A: 真的吗,和谁呢?
B: Daisy, the newcomer in our class.
B: 黛茜,咱们班新来的那位。