folly

1. N-VAR If you say that a particular action or way of behaving is folly or a folly, you mean that it is foolish. 愚蠢的事

It's sheer folly to build nuclear power stations in a country that has dozens of earthquakes every year. 在一個每年發(fā)生幾十起地震的國家建立核電站實在愚蠢。