river port

例句：

1. 1. The river port is a busy hub for shipping and commerce.
   河流港口是一个繁忙的航运和商业中心。
2. 2. The port is located at the mouth of the river, providing easy access to the sea.
   港口位于河流的河口，提供了通往大海的便利通道。
3. 3.The port has been undergoing significant expansion and modernization efforts in recent years.
   近年来，该港口经历了显著的扩建和现代化改造。