port slope

例句：

1. 1. The port is the main entrance to the city.
   港口是城市的主要入口。
2. 2. The ship docked at the port for repairs.
   船只在港口停靠以便修理。
3. 3. The port is surrounded by water and has a busy shipping industry.
   港口被水环绕，拥有繁忙的航运业。