首先是蒸汽船，虽然1850年时蒸汽船最终取代了所有用来运载乘客和货物的船只，随后平底船和龙骨船仍然相当重要。

First came the steamboat; although flatboats and keelboats continued to be important until the 1850's steamboats eventually superseded all other craft in the carrying of passengers and freight.

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一种用来运载乘客、邮件或货物的工具，如飞行器。

A vehicle, such as an aircraft, used to transport passengers, mail, or freight.

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阿尔文潜水器开始运行于1964年，是第一个能够运载乘客深海潜水器。

Alvin, which began operation in 1964, was the first deep-sea submersible capable of carrying passengers.

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