an early warning of potential danger
潜在危险的早期警告 (qiánzài wéixiǎn de zǎoqī jǐnggào)
"Melting glaciers are the canary in the coal mine for climate change."
"融化的冰川是气候变化的煤矿中的金丝雀。" (Rónghuà de bīngchuān shì qìhòu biànhuà de **méikuàng zhōng de jīnsīquè**.)
the most vulnerable or insecure part of a system
a visual image can express complex ideas better than words
to have and use power or influence effectively
the distribution of power between nations to prevent any one...
to remove things to tidy a space
behind the surface; the underlying mechanism or system
