broadness of band

例句：

1. 1.The river has a broadness of 20 kilometers.
   这条河的宽度为20公里。
2. 2.The new road is wider than the old one.
   这条新路比旧路宽。
3. 3.The bridge has a broadness of 50 meters.
   这座桥的宽度为50米。