該付而落在後面
這一族是核心畫面最直接的樣子：錢沒跟上日子。差別只在句子要指那堆錢，還是指落後的那個人或款項。
noun · C1
The money you owe because you did not pay it at the right times: the amount that has built up from the payments you missed.
積欠的款項
核心畫面
You can think of arrears as the money that is walking behind the clock. Payments sit on a calendar, one to a date, and the money is supposed to arrive on the square where it belongs. Arrears is what is left standing behind those squares. Usually that is because a payment was missed, but the same picture also fits money that was always meant to come afterwards.
arrears 可以想成「走在時間後面的那些錢」。付款像月曆上一格一格的日子，每一格都有一筆錢該到位。沒到位的，就留…更多收起
arrears 可以想成「走在時間後面的那些錢」。付款像月曆上一格一格的日子，每一格都有一筆錢該到位。沒到位的，就留在後面。那一堆留在後面的錢，就是 arrears。多數時候是因為漏付了。不過同一個畫面也裝得下另一種情況：錢本來就講好要走在後面，等時間過完才付。Two branches
講好了事後才付
錢一樣走在時間後面，所以字沒換。但這裡少了「漏掉」那一層：不是有人沒付，而是一開始就約好先做後付。
noun · C1
If pay is in arrears, it comes at the end of the period you have already worked, not before it. A salary paid monthly in arrears arrives once that month is finished.
事後支付