The advantage of a swing keel is that, with the keel raised, the sailboat can go into shallow water and sits lower on a trailer.

摇摆龙骨的优点在于，当龙骨升起时，船只能在浅水航行，并减低在拖车上的高度。

youdao

The advantage of a swing keel is that, with the keel raised, the sailboat can go into shallow water and sits lower on a trailer.

摇摆龙骨的优点在于，当龙骨升起时，船只能在浅水航行，并减低在拖车上的高度。

youdao