The clock setting, which has been a staple since 1947, represents the severity of the perceived threat to humanity from nuclear or biological weapons, climate change and other human-caused disasters.
“末日之钟”于1947年设立，代表了人类感受到的来自核武器或生化武器、气候变化及其它人为灾难等威胁的严峻程度。
We have studied the biological clock of human body for a century.
对于人体生物钟的研究已经有一个世纪了。
The human body has a biological clock, so life must be the law.
人的身体有一个生物钟，所以生活要有规律。
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