请帮我区别一下这2个单词的不同之处,FEAR 和 TERROR.应该怎么使用?

terror表示由经验而感知的极为强烈的“恐惧”
He ran away in terror.
他被吓得逃跑了.
His terror was so great that he could do nothing.
他惊恐万分,以致什么事情也不能做了.
fear 不管用作名词还是动词,基本上有两个含义,即“怕”或“担心”
If,at the time,the British had not feared invasion,it would have been completed.
当时英国人如果不怕入侵,这条隧道早就建成了.
At first,she decided to go to the police,but fearing that she would never see Rastus again——the letter had made that quite clear——she changed her mind.
起初她决定去警察局,但是由于害怕再也见不到拉斯特斯了——那封信已经把这一点说得相当清楚——她改变了主意.
The manipulated do not understand them; the manipulators fear them.
受人摆布者不理解他们,摆布别人者害怕他们.