volume 
英 [ˈvɒljuːm]  美 [ˈvɒljuːm] 
n. 卷，册；体积；大量；音量

v. 收集成卷；成团喷出

adj. 大量的

例句：
The volume of sales has increased slightly. 

销售量小幅上涨了。

A given volume of air contains only about one-third as much oxygen as it would at sea level. 

一定容积空气的含氧量只有海平面处空气含氧量的三分之一左右。

When egg whites are beaten they can rise to seven or eight times their original volume. 

打过的蛋清，体积可以涨到原来的七八倍。

the sheer volume of traffic and accidents 

交通流量之大、事故之多