our national transportation policy.
我們國家的交通運輸政策
The group was considered to be a risk to national security.
這伙人被認為是威脅國家安全的危險分子。
Class sizes in the school are below the national average.
這所學校班上的人數少于全國平均數。
He's a talented athlete who competes nationally and internationally.
他是一位有才華的運動員，既參加國內比賽，也參加國際比賽。
The programme was broadcast nationally.
這個節目曾在全國播放過。
The president's popularity nationally is at an all-time low
總統在全國的人氣目前正處于歷史最低點。