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confirmed + noun
形容词 confirmed 置于名词前，表示“已证实的、确凿的”；用于人时指“根深蒂固的、坚定的”，如 a confirmed bachelor（坚定的独身主义者）；在银行业务中指“保兑的”，如 a confirmed letter of credit（保兑信用证）。
Only confirmed cases were included in the study.
只有经证实的病例被纳入这项研究。
被证实的；已确认的
先理解核心含义，再看它在真实句子里的用法。
被证实的；已确认的
having been established or made firm; verified
Only confirmed cases were included in the study.
只有经证实的病例被纳入这项研究。
已验证或批准的。
Verified or ratified.
已接受坚信礼的。
Having received the rite of confirmation.
The airline sent me a confirmed booking for my flight to Tokyo.
航空公司给我发来了已确认的东京航班预订。
Only confirmed facts should be included in the report.
报告中只应包含经证实的事实。
She showed the guard her confirmed ticket to enter the concert hall.
她向保安出示了已确认的门票，得以进入音乐厅。
形容词 confirmed 置于名词前，表示“已证实的、确凿的”；用于人时指“根深蒂固的、坚定的”，如 a confirmed bachelor（坚定的独身主义者）；在银行业务中指“保兑的”，如 a confirmed letter of credit（保兑信用证）。
Only confirmed cases were included in the study.
只有经证实的病例被纳入这项研究。
Not this
Please confirmed the appointment.
Use this
Please confirm the appointment.
'please' 后接动词原形；confirmed 是过去式或过去分词，不能用于祈使句，应改为原形 confirm。
Not this
I am confirmed that the project will succeed.
Use this
I am confident that the project will succeed.
表示“确信、有信心”要用形容词 confident；confirmed 意为“被证实的/根深蒂固的”，不与 be + that 从句搭配表示主观信心。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
确诊病例
The city has reported more than one hundred confirmed cases.
该市已报告一百多例确诊病例。
已证实的报道
There were no confirmed reports of injuries after the earthquake.
地震后没有关于受伤的已证实报道。
已确认的预订
Guests with a confirmed reservation should go directly to the front desk.
已确认预订的客人请直接前往前台。
终身不娶的男人
At 50, he is still a confirmed bachelor.
他五十岁了，仍是个终身不娶的男人。
坚定的乐观主义者
Even after losing the match, she remained a confirmed optimist.
即使输掉了比赛，她仍然是个坚定的乐观主义者。
铁了心不结婚的单身汉；坚定的独身者
Many people expected him to marry, but he remained a confirmed bachelor.
许多人以为他会结婚，但他始终是个铁了心不结婚的单身汉。
Use confirmed naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
confirmed 里有 firm（坚定）：被坚定地认定，就是“已证实的”；作形容词还可指人“坚定、根深蒂固”的。
语域：mixed 常见场景：正式通知或书面语、预订或交易确认信息、文学或新闻报道 作为形容词，confirmed 在表示‘已确认、被证实’时通常用于正式书面语和商务场合；在表示‘根深蒂固的、一贯的’时多出现在文学或新闻语体中，带一定修辞色彩。日常口语中较少单独使用该形容词。
押韵词：firmed、wormed、squirmed、permed 的重读元音均为 /ɜː/，且都以 /md/ 结尾，与 confirmed（/kənˈfɜːmd/）押韵。注意拼写相似的 conformed（/kənˈfɔːmd/）和 confined（/kənˈfaɪnd/）发音不同，不要混淆。
Dictionary facts from ECDICT, WIKTIONARY.