canary in the coal mine..
請問canary in the coal mine這句話是俚語嗎???是什麼意思…
- SigmaLv 71 0 年前最佳解答
canary in the coal mine?
Life for an actual canary in a coal mine could be described in three words - short but meaningful. Early coal mines did not feature ventilation systems, so miners would routinely bring a caged canary into new coal seams. Canaries are especially sensitive to methane and carbon monoxide, which made them ideal for detecting any dangerous gas build-ups. As long as the canary in a coal mine kept singing, the miners knew their air supply was safe. A dead canary in a coal mine signalled an immediate evacuation.
Today, living like a canary in a coal mine often refers to serving as a warning to others. In another sense, many business and political analysts use the term canary in a coal mine to describe a harbinger of the future. A melting glacier in Alaska, for example, may be described as a canary in a coal mine for global warming.
2008-10-19 18:29:47 補充：
簡單的說, canary in the coal mine就是事先知道危險而提出警告者
2008-10-19 18:30:51 補充：