每日雅思词汇:骨头英语bone a bag of bones 骨瘦如柴的人; close to the bone 近乎遥的、卑鄙的; bone of contention 争论的焦点; be chilled to the bone 冻僵了; bone up 刻苦用功读书; throw someone a bone 表面恩赐,把令人失望的东西给某人; bone idle 懒到遥点的