He has a good ear for accents and can usually tell where a speaker comes from.他对口音有灵敏的辨别力，通常能听出讲话人来自哪儿。He shows fine discrimination in choosing wines.他在选酒时显示出敏锐的辨别力。Underground, one loses all sense of direction.在地下，人就失去了对方向的一切辨别力。Hughes was a nice man, but not a subtle one.休斯是个和气的人，但没有什么辨别力。