1. The speed-boat had truck a buoy, but it continued to move very quickly across the water.
    快艇撞上了一只浮标，但它继续很快地穿过水面。

2. The speedboat had struck a buoy, but it continued to move very quickly across the water.
    快艇撞上了一个浮标，但它仍在水面上快速行驶着。