One picture holds this word together: something being done for everybody, not for one paying customer. Think of a bus that stops for whoever is waiting, a hospital that opens its door to whoever walks in, a warning message read out to a whole city. Nobody at the counter is asking who paid. From that one picture the word reaches in two directions: outward to the service itself, and back to the people and offices that run it.
這個詞可以想成一個畫面：有件事是做給「所有人」的，不是做給某一個付錢的客人。公車停下來載等車的任何人；醫院開門收走進來的任何人；一段警報訊息播給整座城市聽。沒有人在櫃檯問你付了沒有。從這個畫面出發，它往兩邊延伸：一邊是那項服務本身，一邊是辦這些服務的那群人和那些機關。
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