N a gymnastic movement in which the body is turned heels over head with the back of the neck resting on the ground 前滚翻
The headfirst forward roll requires the rollers to press down with feet, jump, prop up with arms and roll consistently.
鱼跃前滚翻动作，要求蹬、跃、撑、滚连贯，腾空高，滚翻圆滑。
This allows the ball to begin its turn towards a more forward roll which will smooth out the reaction and make the ball become more predictable as it travels down the lane.
如此可以使球较容易转换成较为前滚的运动型态，使球的尾端较为平顺，球在球道上的行进路线也会比较穏定而容易被掌控。
The figures' fat bellies tilted them forward, and a D-shaped base allowed handlers to roll and rock them side to side.
这些人的大腹便便使他们身体前倾，D 形的底座可以让操纵者左右滚动和摇摆。
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