Definition
To land, as when an aircraft completes its descent.
（太空船）降落，着陆
The plane touched down safely on the runway, and the passengers began preparing to disembark.
飞机安全降落在跑道上，乘客们开始准备下机。
Everyone held their breath as the spacecraft touched down.
当太空船降落时，每个人都屏住了呼吸。
Their helicopter touched down on the beach, and the passengers could hardly wait to get out.
他们的直升机降落在沙滩上，乘客们迫不及待地想要出去。