Aeronavigation
空中导航
🗣️ 情景例句
But, like your Grandpa suggested,
但是， 照你爷爷所建议的，
It is hard to please all parties.
取悦各方，谈何容易。
A woman saw it happen when she was walking past.
一位妇女走过的时候，看到我的钢笔掉了。