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When you have to kill a man it costs nothing to be polite.
煤炭的真正成本不仅在于价格,还在于我们如何管理其后果。
As we delve deeper into the quantum world, we find that topology is not just a mathematical curiosity, but a fundamental aspect of nature.
当你为自己的生活承担责任的那一刻,就是你开始改变它的那一刻。
The world is a cruel place, but it is also beautiful.
仅仅做到我们的最好是不够的,有时候我们得达到要求。