keelboat例句
As it's name implies, keelboat has a keel to help it go straight in the water. Keelboat is a large, heavy, stable, and multi-people controlled boat that is more suitable on long distance sailing..特点-船底有一块牢固的稳向板和压铅，排水量年夜、构造庞大、 价钱昂贵， 多人操作，适于长隔断比赛和远洋探险。
keelboat英语解释一种河船中释n
