在英文中，快艇被称为"speedboat"。这个词的来源可能源于它的速度，因为快艇通常比其他游艇要快得多。它通常用于运输人或货物，也可用于娱乐目的。例句：

We rented a speedboat for the day and had a great time exploring the island.

The smugglers used a speedboat to quickly transport the illegal goods across the border.

The speedboat race was exciting to watch, with the boats zooming across the water at high speeds.