知识贝壳
知识贝壳
所属栏目：世界英汉杂辑
The units are used with prefixes in front of the word to denotemultiples or submultiples of 10. For instance,centi-indicates 10-2(0.01),so 1 centimetre (1 cm)is 0.01 metre.kilo- denotes 1 000,so 1 kilometre (1 km) is 1 000 metres. Note that the unit of ma ......（本文共 753 字 ） [阅读本文]>>