port and harbor law

例句：

1. 1. The port and harbor law is a very important legal document.
   港口和港口法是一项非常重要的法律文件。
2. 2. The port and harbor law has been revised several times in recent years.
   近年来，港口和港口法已经修订了几次。
3. 3. The port and harbor law is used to regulate the activities of ships and their crews at ports.
   港口和港口法是用来规范船舶及其船员在港口活动的法律。