The unthinkable had happened - his secret activities had been discovered by the press.难以想象的事发生了——他的秘密活动被新闻界发现了。He is confident the backroom can step into the temporary void.他相信从事秘密活动的人可以暂时补缺。Terrorists have been operating covertly in England.恐怖分子已在英格兰秘密活动。