Dtmf
n. 双音多频
🗣️ 情景例句
I see. What time will she come back?
哦，那她几点会回来？
Take it. Otherwise you can't go on the trip.
喝了它，不然你不能继续旅行了。
This is a bus stop. The people are waiting for a bus. They are stand in line.
这是一个公共汽车站。人们在等车。他们站成行。