清路的人
把路清出來的那一個是人：他負責流程，不負責結論。
noun · B2
A person whose job in a meeting, class or workshop is to help a group talk to each other and get their work done, usually staying neutral instead of deciding the answer for them.
引導者
核心畫面
You can picture a facilitator as whatever clears the road so that other people or other processes can move. It does not walk the road itself and it does not choose the destination. A person doing this asks the questions, holds the time and keeps the discussion open until the group arrives somewhere. A thing doing this — cheap data, warm weather, trust — simply removes what was in the way. Either way the word points at the one that made the moving easier, never at the one that decided where to go.
facilitator 可以想成「把路清出來的那一個」。它自己不走這條路，也不決定要去哪裡。如果是人，他問問題、看時…更多收起
facilitator 可以想成「把路清出來的那一個」。它自己不走這條路，也不決定要去哪裡。如果是人，他問問題、看時間、把討論撐開，讓一群人自己走到結論。如果是東西，像便宜的網路、暖和的天氣、彼此的信任，它就是把擋路的東西移開。兩種用法都指向「讓事情變順的那一個」，而不是「決定方向的那一個」。From the word’s history
The source gives the word as facilitate + -or: facilitate means to make something easy, and -or names the one that does it. That is exactly the modern core — the one that makes things easy — and -or names either a person or a thing, which is why both senses fit under one word.
來源資料說這個字是 facilitate（讓事情變容易）加上 -or（做這件事的那一個）。合起來就是「讓事情變容易的那一個」，跟今天的核心畫面完全對得上。而 -or 這個字尾本身不分人或物，這也說明了為什麼「引導者」和「促成因素」可以共用同一個字。
packet wiktionary entry for facilitator (kaikki:3f6f69a190036ae4:890842640:11753): etymology_text 'From facilitate + -or.'
Two branches
清路的條件
同樣是把路清出來，只是清路的不是人，而是一個條件或一樣東西。
noun · C1
A thing, condition or arrangement — not a person — that makes some process easier or more likely to happen.
促成因素