However, the Bell System was intrigued by touch-tone because it increased the speed of dialing.

然而，贝尔系统推出的触摸式的语气，因为它增加的速度拨号。

youdao

However, the Bell System was intrigued by touch-tone because it increased the speed of dialing.

然而，贝尔系统推出的触摸式的语气，因为它增加的速度拨号。

youdao