后面加动词,be动词,介词或者基数词,例如:
1.What's the unit cost?单位成本是多少钱?
2.The cell is the unit of which all living organisms are composed.细胞是构成一切生物的单位。
3.This unit is now an established part of the course.这个单元现在为本课程既定的一部分。
4.These units played a key functional role in the military operation.这些单位在军事行动中起到了主要的职能作用。
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