Building ships and using ships are two very different propositions .

造船和用船是两个完全不同的概念。

Smith thinks that unreinforced open-water ships could become far more common in the arctic by mid-century . "

史密斯认为，到本世纪中叶，在北极地区，船体未加固的开放水域船只将变得更加常见。

But at that size the ships run into problems .

但这样大的船将会遇到许多问题。

English ships never came this way .

英国船只从不朝这个方向来。

13 Ships were stationed there in 1914 .

1914年时有13条捕鲸船靠泊在火山口岛。