( ˈopening) the process of removing restrictions and making sth such as a market, jobs, land, etc. available to more people 解禁；开放◆the opening up of the postal services market to competition 向竞争者开放邮政服务市场◆the opening up of new opportunities for women in business 为在职女性提供新的机会
the process of making sth ready for use 启用；落成◆the opening up of a new stretch of highway 一段新高速公路的开通启用