1. Their collective volume wasn't very large.

他们的集中总量并不很大。

2. an almost overwhelmingly encyclopedic volume

一本几乎包罗万象的卷册

3. The volume of scheduled flights is straining the air traffic control system.

定期航班的数量正使得空中交通管制系统不堪重负。

4. We needed to increase the volume of production.

我们需要提高产量。

5. He came to complain about the volume of the music.

他过来抱怨音乐的音量太高了。