Definition
When an aircraft lands, it is said to put down, and pilots landing their aircraft are also described as putting it down.
（飛機）降落
After the plane put down on the runway, the passengers breathed a sigh of relief.
飛機降落在跑道上後，乘客們都鬆了一口氣。
The captain successfully put the aircraft down on the uneven surface.
機長成功將飛機降落在不平的表面上。
As the plane was about to put down, all passengers were asked to fasten their seatbelts.
當飛機即將降落時，所有乘客都被要求繫好安全帶。