thorax的復數形式
thorax n 1: the middle region of the body of an arthropod between the head and the abdomen 2: the part of the human body between the neck and the diaphragm or the corresponding part in other vertebrates [syn: {chest}, {pectus}] 3: part of an insect's body that bears the wings and legs [also: {thoraces} (pl)] thoraces See {thorax}