opinion作意见可数吗

　　She has a very low opinion of her own abilities.

　　她认为自己的能力很差。

　　Public opinion is influenced by the small elite who control the media.

　　舆论为少数控制着新闻媒介的上层人士所左右。

　　The government can take heart from the latest opinion polls.

　　政府可以从最近的民意测验中找回信心。

　　I'd like to ask his opinion but I find him difficult to approach.

　　我想征求他的意见，但发现很难和他谈得拢。