research 可以作名称和动词，所以它的动词形式也是research
释义之一：作不可数名词 research is work that involves studying something and trying to discover facts about it. 研究
释义之二：作不及物动词 if you research something, you try to discover facts about it. 研究
例句：She spent two years in South Florida researching and filming her documentary.她在南佛罗里达花了两年的时间研究和拍摄纪录片。
research可用作及物动词,也可用作不及物动词。用作及物动词时接名词或代词作宾语。research用作不及物动词时后接介词into或on表示“研究”的领域或方向。
