左曲球指击球极端弯向左方是由反时钟方向的旋转所造成或是有计划性或是出于疏忽
A left-curveball refers to a shot that bends extremely to the left, which is caused by counterclockwise rotation, either by planning or due to negligence
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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