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

这种快艇船身长大大超出，底平，体轻。

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

显易见，快艇适劫掠可能性低的地区的一些大宗贸易使用。