knuckle ball

同根派生

He uses various grips,such as the curve ball,the knuckle ball,the slider,and the fast ball.
他采用各种不同的握球方法投出，如曲线球、指节球、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.
指节球是相当慢的投球,但也是非常有效的,因为它缺乏预知性。
He uses various grips, such as the curve ball, the knuckle ball, the slider, and the fast ball.
投手可以采用各种不同的握球方法投出，如曲线球，滑球、节球和快球等。
A knuckle ball.
（球手投出的）不旋转球
They refused to knuckle under to any pressure.
他们拒不屈从任何压力。