dun a debtor
collocation向债务人催款；催讨欠款
The agency was hired to dun the debtor.
该机构受雇向债务人催款。
催讨；催债
先理解核心含义，再看它在真实句子里的用法。
催讨；催债
to repeatedly demand payment from someone who owes money
The creditor duns him every week for the unpaid loan.
债权人每周都催讨他未偿还的贷款。
向债务人催款
To ask or beset a debtor for payment.
通过不断重复来骚扰,如请求
To harass by continually repeating e.g. a request.
dun
Base
原形
duns
3rd person
第三人称单数
dunning
-ing
现在分词
dunned
Past
过去式
dunned
Past participle
过去分词
The company duns its customers every month.
公司每月催讨客户欠款。
The landlord dunned the tenant for rent.
房东向租户催讨租金。
They have dunned him repeatedly.
他们已经多次催讨他。
规则动词
She is tired of dunning her customers for overdue payments.
她厌倦了向客户催讨逾期的付款。
The landlord dunned the tenant for the rent until it was paid.
房东一直催讨房客的租金，直到付清为止。
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向债务人催款；催讨欠款
The agency was hired to dun the debtor.
该机构受雇向债务人催款。
催付；催讨欠款
They dunned him for payment of the overdue invoice.
他们催他支付逾期的发票。
催款函；催讨信
Another dunning letter arrived from the utility company.
公用事业公司又寄来一封催款函。
反复催讨；不断纠缠
The collector dunned her repeatedly until she paid.
收账人反复催她，直到她付清欠款。
Use dun naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想发音与 done 相同：欠债还没 done（了结），所以债主不断来 dun——反复催讨、纠缠不休。
语域：formal 常见场景：催款函、正式商务信函、法律文书 该词比较常见于正式书面语（如催款、法律或商务语境），在日常口语中并不常用；若指反复纠缠、烦扰，也多用于正式或文学性描述。
All six words rhyme with 'dun' /dʌn/: sun, run, fun, gun, nun, and ton. Note that ton is spelled t-o-n but sounds the same. Be careful with lookalikes: dune /djuːn/ and dawn /dɔːn/ look similar to dun but do not rhyme with it.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.