Learning of the find, others rushed to the district and tried to trace the gold to its source.

But how could the satellite be traced to its source?

That data may help them, eventually, trace the virus back to its source.

How I traced them to their source is a long story that doesn't matter now.

You can listen below and trace the sound to its source.

If this were done, an illness could be easily traced back to its source.

Joe asked, having traced a huge pipe to its source.

But anyone with reasonable computer skills could probably trace this type of message to its source.

Right now I have to trace an old message to its source.

It will not be easy to trace power to its source.