1. The mail boat arrives at the island every Tuesday.
邮件船每周二到达该岛。
2. They waited at the pier for the mail boat.
他们在码头等待邮件船。
3. The heavy storm delayed the mail boat for two days.
暴风雨使邮件船延迟了两天。

A: Has the mail boat come yet?
A：邮件船到了吗？

B: Not yet, it's been delayed by the heavy rain.
B：还没有，它因为大雨延误了。

1) 专门运送信件的船只

2) 在偏远岛屿间提供通讯服务的交通工具

3) 水路邮政运输工具

1. 一种专门用于运输邮件或信件的船只。

e.g.
The mail boat is the only link to the outside world for this island.
这艘邮件船是这座岛屿与外界唯一的联系。

noun

1. A boat used for carrying mail or letters.