您要查找的是不是：
- 那位老人听力差。 The old man's hearing is poor.
- 听力 hearing (acuity)
- 他发觉听力差些。 He has noticed some loss of hearing.
- 带上能够扩大声音以弥补听力差的缺陷 amplifies sound and is worn to compensate for poor hearing
- (=weight bearing) 承重，支重 wt. b.
- 方差 variance
- 带上能够扩大声音以弥补听力差的缺陷。 amplifies sound and is worn to compensate for poor hearing.
- 差分 difference
- NP-hard NP-hard
- 标准差 root-mean-square error (RMS error)
- 英语听力 English Listening Comprehension
- NP-hard问题 NP-hard problem
- 差一点 by a finger's breadth
- NP-hard难题 NP-- hard problem
- 差的 inferiors
- Hard E综合征 Hard E syndrome
- hard money (美国) 现金
- 听力练习 aural learning
- 很差 no chop
- hard money (硬币) 硬通货
