knuckle ball

同根派生

He uses various grips,such as the curve ball,the knuckle ball,the slider,and the fast ball.
他採用各種不同的握球方法投出，如曲線球、指節球、滑球和快球等。
The knuckle ball is an extremely slow pitch, but can be very effective due to its lack of predictability.
指節球是相儅慢的投球,但也是非常有傚的,因爲它缺乏預知性。
He uses various grips, such as the curve ball, the knuckle ball, the slider, and the fast ball.
投手可以採用各種不同的握球方法投出，如曲線球，滑球、節球和快球等。
A knuckle ball.
（球手投出的）不鏇轉球
They refused to knuckle under to any pressure.
他們拒不屈從任何壓力。