the worst nuclear power accident in history took place in chernobyl in 1986 when a reactor there exploded, killing tens of people instantly and exposing hundreds of thousands more to radiation.
历史上最严重的核电站事故发生在1986 年的切尔诺贝利,一个反应堆发生了爆炸,当场炸死几十人,更有上万人受到辐射影响。