If something is prearranged, people already planned it, and agreed it, before the moment you are talking about. The meeting time, the seats, the price, the story you will tell — all of that can be prearranged.

If something is prearranged如果某件事是prearranged people already planned it人們已經計畫好了 and agreed it也講好了 before the moment you are talking about在你講的這個時間點之前。The meeting time開會的時間 the seats座位 the price價格 the story you will tell你要講的說法 all of that can be prearranged這些都可以是prearranged。

It is a quiet, ordinary word, more at home in plans and official notes than in excited talk.

It is這是 a quiet, ordinary word個平淡、普通的字 more at home in plans and official notes比較常出現在計畫和公告裡 than in excited talk而不是興奮的談話中。

Though actually, it often carries a small extra feeling: not just “we planned it,” but “it was settled in advance, so nobody is making it up on the spot.” A prearranged signal is one you agreed on earlier; a prearranged visit is one that was booked, not a surprise.

Though actually不過 it often carries a small extra feeling它常常帶一點額外的意味 not just "we planned it"不只是「我們計畫好了」 but "it was settled in advance而是「這件事事先就講定了 so nobody is making it up on the spot"所以沒有人是臨時亂講的」。A prearranged signal is one you agreed on earlierprearranged signal是事先講好的信號 a prearranged visit is one that was booked, not a surpriseprearranged visit是預約好的拜訪，不是驚喜。

You will also see it as the past form of the verb prearrange: “They had prearranged the whole day.” The opposite feeling is something spontaneous, or decided at the last minute.

You will also see it你也會看到它 as the past form of the verb prearrange當作動詞prearrange的過去式 "They had prearranged the whole day.""They had prearranged the whole day."。The opposite feeling相反的感覺是 is something spontaneous是spontaneous（隨興的） or或是 decided at the last minute到最後一刻才決定的。