1·This nerve travels from your neck down your upper arm, wrapping around the elbow joint on its way to the hand.
这条神经从你的颈部开始下伸到你的上臂，在运行到你的手的过程中围绕过你的肘关节。
2·The first find was a humerus, or upper arm bone, of a giant ground sloth.
第一个发现是巨型树懒的肱骨，或上臂骨。
3·She reaches for the drugs, her movements quick but confident. She quickly fills a hypodermic needle with morphine, and then ties a piece of cloth around her upper arm to find the vein.
里面有一个专门储存麻醉剂的区域，Sara伸手拿起麻醉剂，接着迅速地将麻药抽入注射针管，然后用一块布带绕系在她的上臂，找到静脉，她的动作显得麻利而熟练。
4·Upper arm: Measure around the largest part of each arm above the elbow.
上臂：测量手肘以上每条手臂最粗的地方。
5·In slow tempos the fingers, hand, forearm, and upper arm move up or down simultaneously.
在缓慢的速度中手指、手、前臂和上臂向上或向下的运动是同时。