Gmdss
全球海上遇险安全系统
🗣️ 情景例句
Don't worry. You'll get used to it in no time.
别担心，你会很快习惯的。
Will it be convenient for you to explain your plans to him?
你向他解释计划将是方便的吗？
Long ago, people believed that the world was flat.
很久以前人们相信地球是平的。