unit

The meter is the basic unit used for measuring length in many countries.

(Chinese) 米是许多国家用于衡量长度的基本单位。

We need to calculate the unit price of the items before we buy them in bulk.

(Chinese) 在批量购买物品之前，我们需要计算它们的单价。

The air conditioning unit is located on the roof of the apartment building.

(Chinese) 空调装置位于公寓楼的车顶上。

Each unit in the new computer system can be replaced individually if it fails.

(Chinese) 如果发生故障，新电脑系统中的每个部件都可以单独更换。