The hovercraft travelled first over the water, then mounted the beach, climbed up the dunes, and sat down on a road.
气垫船先在水面之上行驶，然后登上河滩，爬上沙丘，而后停在路上。
The plane is the fast but the hovercraft is more comfortable.
乘飞机最快，但是乘气垫船更舒服。
The twins hadn't seen a hovercraft before, had they?
这对双胞胎以前没见过气垫船，是吗？
