Question

Discuss what these phrases mean to you
2) Leave no step had trodden back.
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Answer 1

In leaves no step had trodden black”: The poet is referring to the paths as equal, especially the morning he finds himself in two pieces over which path to traverse. And that the paths are covered with leaves, which haven't been turned black by steps crushing them

Answer 2

Answer:

It means neither of the roads are less traveled by.