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https://www.etymonline.com/word/B.T.U. 复制 HTML链接:
<a href="https://www.etymonline.com/word/B.T.U.">Etymology of B.T.U. by etymonline</a> 复制 APA风格:
Harper, D. (n.d.). Etymology of B.T.U.. Online Etymology Dictionary. Retrieved July 18, 2025, from https://www.etymonline.com/word/B.T.U. 复制 芝加哥风格:
Harper Douglas, "Etymology of B.T.U.," Online Etymology Dictionary, accessed July 18, 2025, https://www.etymonline.com/word/B.T.U.. 复制 MLA风格:
Harper, Douglas. "Etymology of B.T.U.." Online Etymology Dictionary, https://www.etymonline.com/word/B.T.U.. Accessed 18 July, 2025. 复制 IEEE风格:
D. Harper. "Etymology of B.T.U.." Online Etymology Dictionary. https://www.etymonline.com/word/B.T.U. (accessed July 18, 2025). 复制 中文翻译由AI生成。查看原文,请访问: Etymology, origin and meaning of B.T.U.