Picture a stop halfway through a journey. The tank was full when you set off, the road used it up, and now the car or the plane pulls in so the fuel can go back in. That is the whole of refuel: not simply having fuel, but putting it back after it has been burned. Everything the word does grows out of that one stop.
refuel 可以想成旅程走到一半的那一幕。出發時油是滿的，路把它燒掉了，現在車或飛機靠邊停下來，把油重新裝回去。重點不在「有油」，而在「再裝一次」——先被用掉，才談得上補回來。這個字的每一種用法，幾乎都是從這個停下來加油的畫面長出來的。
From the word’s history
Wiktionary in this packet gives the make-up of the word plainly: re- plus fuel. The re- is why the picture always has a first tank behind it.
這份資料裡的 Wiktionary 直接說明了組成：re- 加 fuel。re- 就是「再一次」，所以畫面裡永遠有「上一次已經加過、已經用掉」這個前提。
Wiktionary entry for refuel supplied in this packet (kaikki:3f6f69a190036ae4:1176307923) — "From re- + fuel."
登入就可以看每一支怎麼連回核心畫面。