What does this amendment 7 mean?

Answer 1

The trial by jury amendment preserves the rights to a jury trial. It also eliminates double jeopardy, a person can only be tried once. It also stated that the maximum that a judge can hear a case on without a jury is 20 dollars, a large sum at the time of its passing.

Answer 2

in suits at common law, where the value in controversy shall exceed twenty dollars, the rights of trial by jury shall be preserved, and no fact tried by a jury shall be otherwise reexamined in any court of the united states, than according to the rules of the common law.

^ that's not the meaning, it IS the amendment ^