hands and feet 手和脚
upper extremities 上肢
lower extremities 下肢
extremities of the body 身体末端
extreme extremities 极端情形
A: My extremities are freezing outside.
A：我在外面四肢都快冻僵了。
B: Make sure to wear gloves and warm socks to protect your extremities.
B：一定要戴手套和穿暖和的袜子保护四肢。
1) 身体末端，如手和脚
2) 极端情况或边缘状态
3) 极度或紧急情形
1. 身体的末端部位（手、脚、手指、脚趾）。
2. 极端情况或极限状态。
noun
1. The furthest points of the body, such as hands and feet.
2. Extreme or severe conditions or situations.
Synonym: limbs, outer parts, edges