例句與造句

1. Coleman was the only U . S . Army airfield in Germany that had its own approach control zone and provided approach control for several airports in the vicinity, both military and civilian, such as Mannheim City Airport ( civilian ), Speyer airfield ( civilian ), Worms airfield ( civilian ), and Heidelberg Army Airfield ( military ).
2. It's difficult to find approach control zone in a sentence. 用approach control zone造句挺難的