rule of the road at sea

例句：

1. 1. The newtraffic rules have been implemented in the city.
   新的交通规则已经实施在城市。
2. 2. Thecaptain has to follow the ship'srules when sailing at sea.
   船长在航海时必须遵守船舶的规则。
3. 3. Thepassengers must follow the rulesof the road at sea.
   乘客必须遵守海上交通规则。