還錢
這是核心畫面最具體的一種：往回走的東西就是錢本身。
pay back money · verb · B2
To pay back money that you borrowed, especially a large amount that you give back to a bank or a person, often a little at a time over a long period.
償還；還錢
核心畫面
Picture a debt closing: something moved from them to you, and now something moves back the other way. The re- is the return trip. What travels back may be money, a favour, or simply the value you got out of the time you spent — but the shape is always two directions, and the second one balances the first.
一筆帳被結清：東西先從對方那邊過來給你，現在有東西往回走。re- 就是那趟「回程」。往回走的可以是錢、可以是人情、也…更多收起
一筆帳被結清：東西先從對方那邊過來給你，現在有東西往回走。re- 就是那趟「回程」。往回走的可以是錢、可以是人情、也可以是你投入時間之後得到的收穫——形狀永遠是兩個方向，而第二個方向把第一個補平。這個畫面很有用，因為它解釋了為什麼 repay 一定預設「先有一件事發生過」：沒有人借你錢、沒有人幫過你、你沒有先花力氣，就沒有東西需要往回送。Three branches
報答人情
把往回送的東西從錢換成心意：對方先給了你幫助，你用行動送回去。
do something back for kindness · verb · B2
To do something for someone, or give them something, because they have helped you or been kind to you.
報答；回報
值回投入
同樣是回程，但這次還你的不是人，而是那件事情本身：你投入時間力氣，它給你相稱的收穫。
worth the effort put in · verb · C1
If something repays your time, effort, or attention, it is worth what you put into it, because you get something good back from it.
值得（花時間或力氣）
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
repayverb詞源 1/ɹiˈpeɪ/
- 1
Synonym of pay back in all senses.
- I finally repaid my student loans, just before sending my kids to college.
- I'll repay this wrong asap.
- 2
To make worthwhile; to yield a result worth the effort; to pay off.
- The possible importance of excessive androgen secretion and the ingestion of agents such as the fluorenamines may repay further investigation.
- 3
To give in return; requite.
repayverb詞源 2/ɹiˈpeɪ/
- 1
nauticaltransportTo pay (cover with tar, pitch, etc.) again.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。