... 处于困境中 Boxed In a Corner 危险的预兆 Canary in a Coal Mine 交钱 To Shell Out ...
2
?煤矿坑里的金丝雀
要知道它们的关系，就要从 canary in a coal mine（煤矿坑里的金丝雀）的典故讲起。原来 canary（金丝雀）对瓦斯十分敏感，只要矿坑内稍有一丝丝瓦斯，牠便会焦躁不安，甚至啼叫，让矿工们及早撤出矿坑...
双语例句
1
But they insist fireflies are a "canaryinacoalmine" in terms of understanding the health of an ecosystem.
但是他们坚持萤火虫是评估生态系统健康程度的警报器。
2
Like the proverbial canaryinacoalmine, the nearly 10, 000 known bird species act as "environmental barometers" whose populations can appraise the greater well-being of their habitats.