你能在此文中（译者注，还没翻译到这一节，留链接位置先）了解到龙骨形状的差异。

You can read about differences in keel shapes here.

youdao

固定龙骨和活动龙骨各有其优势和缺陷，当在其中进行选购时，确保你考虑了以下这些差异。

Fixed keels and centerboards each have their own benefits but also disadvantages. When deciding what type of boat to buy, be sure you have considered these differences.

youdao

拖龙骨？你们在谈拖龙骨？倒是个挺合适的话题，你要明白这一点。回到你的位子上去，你这个笨蛋，汤姆。

Keel-hauling, was you? And a mighty suitable thing, too, and you may lay to that. Get back to your place for a lubber, Tom.

youdao