【看新闻学英语】U.S. files espionage charges against Snowden over leaks file vt.正式提起（诉讼，请求等） espionage n.间谍，间谍活动 charge n.诉讼 leak n.泄露 词组：file charges against sb. over sth. 就（某一行为）对（某人）提起诉讼。
