airport of departure

例句：

1. 1.The flight departs from the airport at 9:00 AM.
   航班从机场上午9点起飞。
2. 2. We need to find a departure point for our journey.
   我们需要找到一个旅程的出发点。
3. 3. The plane landed safely at the airport of departure.
   飞机安全降落在出发地机场。