/?na?n?h?n.dr?d ?n?m.b?/in the US, anexpensivephonenumberthatbeginswith 900,providedbycompaniesofferingservicessuch aschatlines(美国的)900号码(由提供电话聊天之类服务的公司开通的以900开头的高收费电话号码)SMART Vocabulary: related words and phrasesCommunications - by telephone
3G
4G
5G
aeroplane mode
airplane mode
area code
autodial
dialling tone
Directory Enquiries
helpline
phone mast
pick
picksomeone/somethingup
pocket dial
prank caller
ring
roam
telecoms
telephone
transfer
See more results ?(Definition of900 numberfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/900-number##