foul ball
US
・UK
C1 高級
n. (c.)可數名詞界外球
The batter hit a foul ball into the stands.
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學英文：棒球術語、用語、規則與文化！ (Learn English: Baseball Vocabulary, Expressions, Rules, and Culture)
- A foul ball.
界外球
- So, if the batter hits the ball, but the ball goes out of the field before third base or before first base, or if it goes up in the air, but then out of this line, then that's called a foul ball, and that's basically a strike, and he can hit again.
是以，如果擊球手擊出了球，但球在三壘前或一壘前飛出了外野，或者球在空中飛了起來，但又飛出了這條線，那麼這就叫做界外球，基本上就是三振出局，他可以再次擊球。
