To heal the cut quickly, the scientists added heat, to jostle the molecules around and help lonely pairs bump into each other.

从而快速愈合研究人员通过加热，挤压附近的分子来帮助独立的物体相互结合。

So, the work done by the system will be equal to the amount of heat added, and vice versa.

所以系统所做的工作将是相等的 对于添加的热量，反之亦然。

Also, as the Earth formed and gained mass, it began to contract under its own gravity, and this squeezing added heat to the material.

同时，随着地球的形成和质量的增加，它在自身的引力作用下开始收缩，这种挤压增加了物质的热量。