a. relating to the motion of material bodies and the forces associated therewith
s. characterized by motion
a. 运动的, 运动引起的, 动力学的, 活动的
[医] 运动的, 动的, 动力的
1. The kinetic energy of a moving car is much greater than that of a parked one.
一辆行驶中的汽车的动能远大于停着的汽车。
2. In physics class, we learned how kinetic energy changes with speed.
在物理课上，我们学习了动能如何随着速度变化。
3. The roller coaster uses kinetic energy to move up and down the tracks.
过山车利用动能在轨道上上下移动。