三不沾；空炮；篮外空心球
（篮球中的）空气球（俗称“三不碰”，即投篮未中且未触及篮板、篮圈和篮网的球）
The ball curved strangely in the air.───球在空中划出奇怪的弧线。
Moreover air ball screws were associated with a significant loss of pullout strength.───而且,“三不沾”椎弓根钉与明显的把持力减少有关.
ball curved through the air.───球在空中沿曲线运动。
That air ball went no where near the backboard.───那个篮外空心球投得离篮板太远了.
The ball looped high up in the air.───球高高飞起，在空中画了一条弧线。
That air ball went no where near the backboard.
Moreover air ball screws were associated with a significant loss of pullout strength.
air balls───三不沾；空炮；篮外空心球
fair ball───界内球
air bell───气泡，砂眼
airball───空炮
fair balls───界内球
air bells───气泡斑痕
air bag───气囊
air bags───安全气囊；充气袋；安全气囊
air base───n.空军基地