补付款项的追领

[经] retroactivity of payments

bǔ fù kuǎn xiàng de zhuī lǐng ㄅㄨˇ ㄈㄨˋ ㄎㄨㄢˇ ㄒㄧㄤˋ ㄉㄜ˙ ㄓㄨㄟ ㄌㄧㄥˇ