open adj.开着的；开放的；公开的v.打开；张开；展开；摊开；开始(某事物)；开张；营业；以…开头；宣布启用n.户外；公开
the art.那；这；这些；那些adv.（用于比较级前）更加；用于最高级前；(用于形容词、副词比较级前)越...越...
双语例句
Officials at the border say they are working to strike a balance, extending security while maintaining an open border with Canada. 边防官员表示他们努力维系一个均衡，在提升安全的同时也保持对加拿大开放边境。
