n.龙骨船（一种河船），龙骨式游艇...

This two - person keelboat is known for its relative small cockpit and its flexible mast.这艘双人龙骨船的特点在于它相对较小的船舱和灵活的桅杆....

keelboat的音标：keelboat的英式发音音标为：['ki:lbəʊt]keelboat的美式发音音标为：['kilˌboʊt]...