1. 水翼船;水翼
A hydrofoil is a boat which can travel partly out of the water on a pair of flat parts like wings. You can also refer to the flat parts as hydrofoils .

1. a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds

e.g. the museum houses a replica of the jet hydroplane that broke the record

Synonym: hydroplane

2. a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through

e.g. the fins of a fish act as hydrofoils

Synonym: foil