on the air

相關對話：

1. A feather floats about on the air, especially on a windy day. If there is a shower of rain, the feather will get wet and heavy with water, and then it will sink straight to the ground.
   羽毛會在空中四處飄動，尤其是在多風的天氣。如果遇上陣雨，就會因為淋上雨水變濕就沉，然後就會垂直落回到地上。
2. The bombers swooped on the air base.
   轟炸機突襲空軍基地。
3. This channel comes on the air every morning at 7 am.
   這個頻道每天早晨7點鐘開始播放。
4. The news will be on the air tonight.
   這個新聞今晚將要廣播。