张力

例句：

1. 1. The car's engine is running smoothly with a good amount of tension.
   这辆车的引擎运行得非常顺畅，有相当大的张力。
2. 2.The rope was stretched taut to hold the heavy weights.
   绳子被拉得很紧，用来承载沉重的重量。
3. 3. The tension between the two countries has been high recently.
   这两个国家之间的紧张关系最近一直很高。