短语词组用作名词 (n.)动词+～amputate a limb 截肢cut off the limb 砍掉树枝stretch limbs 伸展四肢形容词+～fallen limb 落下的树枝artificial limb 假肢the lower limb 下肢weak limbs 软弱无力的四肢介词+～tremble in every limb 四肢发抖on a limb 在树枝上out on a limb 处于孤立短语 返回 limbing