vessels subjected to external pressure

例句：

1. 1. The captain ordered the ships to sail at full speed.
   船长命令所有船只全速前进。
2. 2.The navy is responsible for protecting the nation's maritime interests.
   海军负责保护国家的海洋利益。
3. 3.The merchant ships were carrying cargo from one port to another.
   商船正在从一个港口运送货物到另一个港口。