| 例句 |
You don't sail there unless you want to lose a keel.不能向那里航行，除非你想损失一根龙骨。The keel of the boat was made of steel.这船的龙骨是钢制的。The yacht's keel is bolted to the hull.游艇的龙骨用螺栓固定在船身上。You sense the stresses in the hull each time the keel meets the ground.每次龙骨触地的时候你都能感受到船体所受的压力。 |