第三人称复数：preservers
1. He has become a passionate preserver of customs nearly forgotten in this city.
2. People who were fishing at the wharf threw him a life preserver and saved him.
3. China is a participant in the current international system and its preserver and builder.
noun
1. rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning
Synonym: life preserver flotation device
2. someone who keeps safe from harm or danger
3. a cook who preserves fruits or meat
4. preserver什么意思
4. a skilled worker who is employed to restore or refinish buildings or antique furniture
Synonym: refinisher renovator restorer