Warehouse staff must wear insulated gloves and boots to protect their extremities from frostbite.

倉庫員工必須穿戴保暖手套和靴子，以保護手腳免於凍傷。

The safety manual warns that loose machinery can injure workers' hands and other extremities.

安全手冊警告，鬆動的機械可能傷及員工的手部及其他肢端。

After the long flight, several passengers complained of swelling in their lower extremities.

長途飛行後，幾位乘客抱怨下肢出現腫脹。