unit

1. N-COUNT If you consider something as a unit, you consider it as a single, complete thing. 单元

Agriculture was based in the past on the family as a unit. 农业过去以一个家庭单元为基础。

2. N-COUNT A unit is a group of people who work together at a specific job, often in a particular place. (工作) 单位

...the environmental research unit. …环境研究单位。

3. N-COUNT A unit is a group within an armed force or police force, whose members fight or work together or carry out a particular task. 分队

...a firefighting unit. …一个消防分队。

4. N-COUNT A unit is a small machine which has a particular function, often part of a larger machine. 部件

The unit plugs into any TV set. 该部件可接入任何电视机。

5. N-COUNT A unit of measurement is a fixed standard quantity, length, or weight that is used for measuring things. The quart, the inch, and the ounce are all units. (计量用的) 单位

6. N-COUNT A unit is one of the parts that a textbook is divided into. (教科书的) 单元

Unit V of this book explains those errors in detail and shows you ways to correct them. 这本书的第5单元详细解释那些错误并且教你改正的方法。