witness something (also ..., as witnessed by something) used to introduce an example that proves something you have just mentioned 以…作证〔用于给刚提及的事举例〕 Bad economic times can result in political dictatorships. Witness Germany in the 1930s. 经济不景气时代可能导致政治独裁，20世纪30年代的德国便是证明。
→ witness something at witness2(1)