channel singing margin

例句：

1. 1. The radiostation is on the main channel.
   这个广播电台在主要频道。
2. 2. She uses her phone as a communication channel between her and her friends.
   她用手机作为她和朋友之间的通讯通道。
3. 3.The new highway will provide better access to the city bypassing the old channel road.
   这条新的高速公路将通过绕过旧的通道道路，为城市提供更好的通行途径。