unsolicited

an email sent without the recipient's consent, typically for advertising; spam

a telephone call from someone that you do not know and are not expecting, often for sales

不请自来的信息

a digital message, such as a text or instant message, sent without prior consent

未经事先同意发送的数字信息，如短信或即时消息

不请自来的建议

advice that is given without being asked for

在没有被请求的情况下给出的建议

physical letters or packages sent without the recipient's consent, often for advertising

a file sent with an email that the recipient did not request and may be malicious

something submitted for consideration, like a proposal or application, without being requested

a manuscript sent to a publisher by an author without being requested