influence作动词的时候是及物的
The weather influences crops.
天气影响农作物.
Outside factors influenced him to resign.
外界因素促使他辞职.
当它作名词的时候要加on,influence on
influence of atmosphere on optical systems
大气对光学系统的影响
the influence of television on modern life
电视对现代生活的影响
为什么及物动词仍加介词?如：influence为及物动词但却有influence on/upon/with的搭配,