英语语法分析

Some speedboats can zip around at 80 miles an hour.

有一些快艇可以以每小时80英里的时速呼啸而过。

Police allege that he graduated from bikes to cars, then to speedboats.

警方称，他偷盗的目标也有所转变——从单车到汽车，再到快艇。

Because loud sounds, for example from whizzing speedboats, distract them, and apparently impair their predatory skills.

因为巨大响声，例如快艇发出的巨大轰鸣声会让他们分心，而且明显损害了它们的捕猎技能。