upholder

例句：

1. 1. The company'sboard of directors is made up ofseveral upholders.
   该公司的董事会由几位支持者组成。
2. 2. The new policy will be upholder of the existing regulations.
   新政策将维护现有的法规。
3. 3. The tree was upholder formany years before it finally fell down.
   这棵树在很多年前就作为支撑物存在了，直到它最终倒下。