Can you turn the volume up a bit?
你能把音量开大点儿吗？
This work has grown in volume recently.
这项工作的量最近增加了。
New roads are being built to cope with the increased volume of traffic.
正在修建新的`道路以应付增加了的交通量。
The number of accidents is proportionate to the increased volume of traffic.
交通事故的数字与交通量的增长成正比。