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出典:Wiktionary
出典:『Wiktionary』 (2007/10/04 06:01 UTC 版)
出典:『Wiktionary』 (2025/03/20 23:42 UTC 版)
From plumb line (noun).
plumb-line (third-person singular simple present plumb-lines, present participle plumb-lining, simple past and past participle plumb-lined)