1. 书中提到不要把outweight和outweigh混了。但是根本就没有outweight这个单词,不信大家可以去查webster字典。
2. p.96: "the amount of waste produced is also a result of our babit of using something once and throw it away", throw应该换成throwing。
p.108: "Some adults do not have a clear idea of what constitute a crime. In fact, two elements are required for a crime to occur: a criminal act and a criminal intent.", what 后面是不是应该单数形式呢?