keel

给…装龙骨；把…翻转中释v

龙骨；平底船；龙骨脊英释中释na bar along the bottom of a boat that keeps it steady in the water

1 even keel,船身平稳

2 on an even keel,adv. 平稳地

1 The keel hit the rock first..船龙骨先撞到岩石。