motile cell

例句：

1. 1. The motile cells are responsible for the movement of the organism.
   这些活动细胞负责生物体的运动。
2. 2. Motile bacteria can move around and spread throughout the body.
   活动细菌可以在身体内四处移动并传播。
3. 3.The motile flagella allow the cell to move through the water.
   活动鞭毛使细胞能够在水中移动。