英语语法分析

A counterterrorism source described "Gabs" as a "shadowy figure" and confirmed that he had been one of the factors that had led investigators to the terrorist cell behind the airline plot.

某个反恐消息来源把“Gabs”形容为“影子人物”，并证实他是导致调查人员追踪到航空公司爆炸阴谋背后有恐怖团伙的因素之一。