a neutral or uncommitted person (especially in politics)
fence sitter的用法和样例:
例句
用作名词 (n.)
I have to make sure that we got rid of the saboteurs, built a strong cadre of disciples, and moved all the fence sitters to the positive side. 我必须确保铲除蓄意破坏者,建立强大的追随队伍,并且争取所有的骑墙派。