Use a dictionary，give English meanings of the word in bold and then write a sentence.
Finding and keeping the right balance between progress and the protection of cultural sites can be a big challenge.
Definitions
V.

hold or carry in equilibrium

hold or carry in equilibrium

n.

equality of distribution

equality of distribution

Sentences

The tightrope walker kept her balance by holding an open umbrella.

The tightrope walker kept her balance by holding an open umbrella.