prep.关于；... 的（表所属）；出身于；由于
I have heard of him. 我听说过他。
He is a friend of my father. 他是我父亲的朋友。
He is a Prime Minister of working class origin. 他是一位工人出身的总理。
He listed the kings and queens of England. 他列出了英国的所有的国王和王后名字。
His father died of pneumonia. 他父亲死于肺炎。
