名词
中文翻译：Unknown
同义词：
['route', 'flight path', 'air route']
例句：
-
1. The airline has announced a new route to the destination city.
航空公司宣布了前往目的地城市的一条新航线。
-
2. The pilot navigated the air line with precision.
飞行员以精确的导航操作了这条航线。
-
3. The flight was delayed due to the air line congestion.
由于空中交通拥堵，航班延误了。