be a spectator at an event or incident; watch sth without taking part in it oneself 观看某事物; 旁观
*Passers-by just looked on as a man was viciously attacked. 有一男子遭人毒打, 路人只在一旁观看. look on sb/sth as sb/sth regard or consider sb/sth to be sb/sth 将某人[某事物]看作他人[他事物]
*She's looked on as the leading authority on the subject. 她被认为是该问题的主要权威. look on sb/sth with sth regard sb/sth in the specified way 以某种态度看待某人[某事物]
*I look on him/his behaviour with contempt. 我对他不屑一顾[瞧不起他的为人].
* She was always looked on with distrust. 人家对她总是不信任.
* How do people in general look on her? 人们一般对她怎么看?