美国国内的手机正在逐步取代固定电话，但是由于高昂的国际电话费用使得很多用户不愿意使用手机打国际电话。

Cell phones are rapidly replacing wired lines for calls within the U. s., but high charges have kept people from using them much for international calls.

youdao

美国国内的手机正在逐步取代固定电话，但是由于高昂的国际电话费用使得很多用户不愿意使用手机打国际电话。

Cell phones are rapidly replacing wired lines for calls within the U. s., but high charges have kept people from using them much for international calls.

youdao