1. 平民；百姓；民众
You can refer to people in general, or to all the people in a particular country or community, as the public .
e.g. Lauderdale House is now open to the public...
劳德代尔艺术教育中心现已向公众开放。
e.g. Pure alcohol is not for sale to the general public...
纯酒精不向大众出售。
2. 志趣相投（或从事同一类活动、具有共同特征）的群体
You can refer to a set of people in a country who share a common interest, activity, or characteristic as a particular kind of public .
public的意思
e.g. Market research showed that 93% of the viewing public wanted a hit film channel.
市场调查表明93%的观众希望有一个播放热门影片的频道。
e.g. ...the American voting public.
美国选民
3. 公众的；大众的
Public means relating to all the people in a country or community.
public
e.g. The President is attempting to drum up public support for his economic program.
总统正竭力争取公众对他的经济计划予以支持。
4. 政府的；国家的；公共事务的
Public means relating to the government or state, or things that are done for the people by the state.
public的意思
e.g. The social services account for a substantial part of public spending.
社会福利事业占了一大部分的公共支出。