所有中继占线电话公司或电话系统为你提供的一种衡量办公室内外话务量的方法。

One measure which your phone company or phone systems might give you of telephone traffic in and out of your office.

youdao

所有中继占线电话公司或电话系统为你提供的一种衡量办公室内外话务量的方法。

One measure which your phone company or phone systems might give you of telephone traffic in and out of your office.

youdao