overturn v. 推翻；倾覆 n. 倾覆
【真题再现】Our knowledge of mal systems is not likely to be seriously overturned by new discoveries.
我们对疾病系统的了解不太可能被新发现严重破坏。
【CET-6,1995.01，阅读】
【联想记单词】联想：turnover （翻过去）→overturn推翻，倾覆
【活学活用】-My boat was overturned by the waves. Help!!!
-我在大浪中翻船了。救命！！！
所以笑一个吧！