我被涉及的工作量吓退了。

I was put off by the ___volume of work involved.

城市中的交通量正在引起问题。

The ___volume of traffic in the city is causing problems.

据一家主要报纸报道，网络营销的量正在迅速增长。

According to a major newspaper, the ___volume of online marketing is rapidly increasing.