arm

手臂, 袖子, 狭长港湾, 武器

a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb; any projection that is thought to resemble a human arm; the part of an armchair or sofa that supports the elbow and forearm of a seated person

武装, 装备

prepare oneself for a military confrontation

武装起来

prepare oneself for a military confrontation

手臂