1. One thick-skinned show-off waves his foot in the flames for a foolhardy second. 一个厚颜的卖弄者不时的把他的脚鲁莽的放在火焰上（一秒钟）。
2. Although it is foolhardy to doubt that Russia can make industrial innovations, it is vastly more difficult than copying existing techniques. 也许怀疑苏联能否进行工业技术创新过于卤莽，但是技术创新远远比复制己存在技术要难得多。
3. Legend has it that Tal Rasha lies imprisoned within his tomb, forever struggling to keep the Lord of Destruction bound. His was a selfless act, although perhaps foolhardy. 传说中指出塔．拉夏被困在他的古墓之中，永远的和毁灭之王奋战，并把他囚禁在体内。他的行为大公无私，不过可能有点愚笨。
英英解释
adj.
1. marked by defiant disregard for danger or consequences
