指揮飛機：那份工作，和做這件事的人
兩個意思共用同一個畫面，差別只在句子問的是「什麼事」還是「誰」。
noun · B2
The work of guiding aircraft from the ground: people use radio to tell pilots when to take off, which way to fly, and when to land, so that no two aircraft come too close.
航空交通管制
核心畫面
You can think of it as a voice on the radio whose whole job is empty space. Aircraft cannot see each other well, and they cannot stop, so somebody on the ground holds the picture of the whole sky and hands out room in it: you go now, you wait, you turn left. The two meanings are just two ends of that radio — the work being done, and the people doing it.
可以想成無線電另一頭那個聲音，而它唯一在管的東西是「空間」。飛機彼此看不清楚，也沒辦法停在半空中，所以地面上必須有人…更多收起
可以想成無線電另一頭那個聲音，而它唯一在管的東西是「空間」。飛機彼此看不清楚，也沒辦法停在半空中，所以地面上必須有人握著整片天空的全圖，再把裡面的空隙一份一份發出去：你現在走、你再等、你往左轉。這個詞的兩個意思，其實就是這通無線電的兩端——一邊是那份工作，一邊是講話的那群人。One branch