While at sea, a cargo is vulnerable to many dangers.
在海上，货物会遇到各种危险。
While we have been at sea, Jeanie has been working on a seal skin.
在我们喝茶的时候，珍妮正在加工一张海豹皮。
For a while the saloon simmered along like a ship at sea in calm weather.
这一阵子整个酒巴间就象风平浪静中飘泊在大海上的一只船。
For a while the saloon simmered along like a ship at sea in calm weather.
这一阵子整个酒巴间就象风平浪静中飘泊在大海上的一只船。
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