Bones

bones of contention bones up bones to pick bones in the throat bones out bones down bone of contention [法] 争端的原因, 争点 bone up <俚>抓紧温习（课程）（特指学生考试前临阵磨枪）, （为某种目的）突击钻研（某种学科等） bone to pick 不满 bone in the throat bone out bone down make no bones about 对...毫不犹豫 [法] 不加挑剔, 毫无顾忌 no bones about it