prevent sth from being changed, lost or destroyed
"Energy is conserved in this process"
"We preserve these archeological findings"
"The old lady could not keep up the building"
"children must be taught to conserve our national heritage"
"The museum curator conserved the ancient manuscripts"
"I try to economize my spare time"
"conserve your energy for the ascent to the summit"
"Mom always conserved the strawberries we grew in the backyard"
Draw them out of the ground before the frost, and conserve them in a warm place.
Emperor penguins conserve heat by huddling together.
出自： R. Dawkins