涡螺

例句：

1. 1. The scientist found a rotorin the ocean that was millions of yearsold.
   科学家在海洋中发现了一颗有数百万年历史的旋涡螺。
2. 2. The whirlpool is so strong that it can carryaway anything that gets caught in it.
   漩涡非常强大，可以把任何东西都吸进去。
3. 3.The rotor is responsible for the movementof the water in the lake.
   旋涡螺负责湖水的运动。