今天我们要学的词是uncover. Uncover 动词，意思是揭示，发现。

Researchers have uncovered an active cyber espionage operation that has compromised computers from over 100 countries so far. 研究人员发现了一个活跃的空间间谍行动，该行动至今已经破坏了100多个国家里电脑的安全。Auditors uncovered over $42 million in previously unknown funds sitting in LA's city coffers for years due to an accounting error. 审计人员发现，由于财会错误，美国洛杉矶市的金库里有4200多万美元，多年来就白白放在那里，没人知道这笔钱的存在。好的，今天我们学习的词是 uncover, uncover, uncover...