1) Her hearing is poor.

她的听觉不灵。
2) She doesn't/can't hear very well, ie is rather deaf.

她听觉不灵.
3) She has very acute hearing.

她的听觉灵敏。
5) have no ear for

听觉不灵敏
6) have no ear for

对¥听觉不灵敏
参考词条