any substance used to slow down neutrons in nuclear reactors
in the Presbyterian church, the officer who presides over a synod or general assembly
someone who presides over a forum or debate
someone who mediates disputes and attempts to avoid violence
造句
用作名詞(n.)
Anyone who feels that a posted message is objectionable is encouraged to notify an administrator or moderator of this forum immediately. 感到一條公布的消息該反對的任何人被鼓勵立即通知一名管理者或者這個論壇的仲裁人。