law of inertia

例句：

1. 1.The car is moving at a steady pace due to its inertia.
   由于惯性，汽车以稳定的速度行驶。
2. 2. The old man's inertia made it difficult for him to move quickly.
   老人的惰性使他很难快速移动。
3. 3. The team's lack of inertia cost them the match.
   团队缺乏活力导致他们输掉了比赛。