Past of keel over: collapsed or fainted

• Toppled or fell suddenly

过去式/过去分词：倒下或昏倒

• 突然倾倒或摔倒

Of a vessel: capsized or rolled with the keel uppermost

• Heeled over until the bottom showed

指船只：倾覆或翻转至龙骨朝上

• 倾斜到露出船底

Furnished with a keel

• Having a central ridge like a keel (botany/biology)

具龙骨的

• 具有类似龙骨的中央脊（植物/生物）