在已知的2900种蛇中，很少是危险的，能使人致命的就更少了，但人类对蛇的偏见依然很深。
Among the 2, 900 known snakes, few are dangerous, let alone lethal, to humans, but prejudices run deep.
牛津大学的英国研究员们说快速处理小中风可以使得在接下来的30天中患者发生致残的或致命的中风的危险性下降80％。
The British researchers at the University of Oxford say immediately treating small strokes cuts the risk of a disabling or deadly stroke in the next 30 days by about 80 percent.
不过，在日常生活中，“高压线”经常被用来指代那些绝对不能触犯的规章制度，因为一旦触犯，其后果就可能会像触碰了高压线一样有致命的危险。
But in daily conversation, it is often used to refer to top prohibitions, rules that one should never break, because it will prove to be as lethal as touching the high-tension wire.
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