about是介词,后面一般加名词，宾语或动名词。
例句
Shes totally wild about him.
她对他简直是着了迷。
Hes very intense about everything.
他对一切都很热心。
He looked about the room.
他在房间里四下看了看。
I\'m definite about this.
我对这事毫无疑问。
You\'re completely mistaken about Jane.
你对简的看法完全错了。
He\'s ignorant about modern technology.
他对现代科技一无所知。
