Between 1970 and 2000 the US population aged 35 to 44 grew by 43%.
问题描述:
Between 1970 and 2000 the US population aged 35 to 44 grew by 43%.
请问这里的by是什么意思,有例句最好了,
答
表示:增长了
The price/mix increased by 1.8%.
价格综合指数增长了1.8%.
The economy grew by 14% last year.
去年,经济增长14%.