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

显而易见，快艇适于海盗劫掠可能性低贸易使用。

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

这种快艇船身长度超出其宽度，底平，体轻。