“辨别力”用英语怎么说？

候鸟有非凡的方向辨别力。Migrating birds have marvelouos directional sense.采用了具有不同精确度和辨别力的评级方案.Rating schemes with various levels of sophistication or diseriminatory power are used.(指人)如此愚钝,缺乏辨别力和敏感度.So crude and unrefined as to be l...