最終更新日：2025/11/23
(idiomatic) Something whose sensitivity to adverse conditions makes it a useful early indicator of such conditions; something which warns of the coming of greater danger or trouble by a deterioration in its health or welfare.
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正解を見る
canary in a coal mine
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元となった辞書の項目
canary in a coal mine
（ plural ）
（ plural ）
