ever
1.(多用于疑问句、否定句和表示条件和比较的附属从句)在任何时候;从来;至今
He is one of the very best men I have ever met.
他是我遇见的最好的人之一.
witness 见证,目击 v.
ever 从未
ever witness 史无前例
The world is going through the biggest wave of mergers and acquisitions ever witnessed.
整个世界正准备穿越一个史无前例的合资大浪潮.