seafloor发音名词1海底、海床Scientists used sonar to map the seafloor near the volcano.科学家利用声纳绘制火山附近的海底地形。2海底地壳、洋底地质学New crust forms as the seafloor spreads along the ridge.海床沿著中洋脊扩张时会生成新的地壳。用这个字练口说→