buttockn. 半邊臀部、屁股、船尾突出部vt. 過背摔學術名詞艉部:造船工程、機械工程、海事臀:醫學、體育、獸醫學船艉:造船工程、機械工程臀部:畜牧學臀部肉:畜牧學煤面條片:礦冶工程英文釋義either of the two large fleshy masses of muscular tissue that form the human rump