名詞 touch down:

1. a score in American football; being in possession of the ball across the opponents' goal line
   同義詞：touchdown
2. a landing (as the wheels touch the landing field); especially of airplanes
   同義詞：touchdown

動詞 touch down:

1. come or bring (a plane) to a landing

1. At last he touched down on the mainland.
   最后他在大陸上著陸了。
2. Running the length of the field, he was able to touch down just as the opposing players were about to reach him.
   他從球場的一端跑到另一端，就在對方球員要接近他時(shí)，他帶球到了對方的球門線后觸地得分。
3. The plane touched down at the airport at7.30.
   飛機(jī)于7點(diǎn)30分在機(jī)場著陸。