coalmine

基本解释

Workers of the coalmine decided to go on strike for better working conditions.
煤矿工人们决定为争取更好的工作条件举行罢工。
Major coalmine and traffic accidents occur frequently, causing serious loss of life and property.
煤矿、交通等重特大事故频繁发生，给人民群众生命财产造成严重损失。
"Butterflies are the canaries in the coalmine," Farrell explains. "They are very sensitive to pollution, climate change and loss of habitat.
“蝴蝶就像煤矿里的金丝雀（俗语，意为灵敏的检测者），”法雷尔说，“他们对污染、气候变化和栖居地丧失非常敏感。”

As tanks fired into the area around the disputed coalmine, Serbian officials stopped bothering to deny that the army was involved.
ECONOMIST: Kosovo
Serving as a psychological canary in the coalmine of your life, warning you to re-evaluate the wisdom inherent in following one particular path relative to alternative ones.
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After the war, the communists decided to exploit a huge coalmine underneath it, swelling the population to 70, 000—housed in block after block of hideous high-rise concrete hulks, utterly devoid of a sense of community.
ECONOMIST: Saxon snapshots