Physicists then trace these and other decay particles back to their points of origin, providing crucial information about the heavy quarks that spawned them.

物理学家回溯到这些粒子以及其他的衰变粒子的源头处，便能对生成它们的重夸克提供极重要的资讯。

An etymologist can trace the origin and development of a word, but who can identify the moment when absolutely took off?

一名词源学家可以追踪一个词的源头和发展；但是谁能发现”肯定“什么时候流行的呢？

It may also be employed to trace the movements of the car from the point of origin to its destination point.

它也可以用来追踪这个动作的车从源头到目的地。

To trace the origin or derivation of.

溯源追溯…的源头或起源于…