900 number
noun [ C ] uk/ˌnaɪnˈhʌn.drəd ˌnʌm.bər/ us/ˌnaɪnˈhʌn.drəd ˌnʌm.bɚ/
(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)
in the US, an expensive phone number that begins with 900, provided by companies offering services such as chatlines
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