1.The flyboat was exceptionally long compared with its width, had a flat bottom, and was lightly built.

1.这种快长度大大超出其宽度，底平，体轻。

2.It became evident that the flyboat could be used advantageously in certain bulk trades where the danger of piracy was low.

2.显易见，快适于海盗劫掠可能性低一些大宗贸易使用。