新视野大学英语词汇讲解第309期:rate

2012-11-18 12:41:35　

rate

n. 1. the speed with which something happens or is done
速度，速率
He works at a very fast rate.
他工作的速度非常快。
2. the number of occasion within a certain period of time when something happens
比率，率
There is a high accident rate in this factory.
这个工厂的事故率很高。