From 12 feet, you'll throw a full-spin rotation. Grab the knife by the handle, as you would a hammer, but keep your thumb along the top edge for stability and to prevent over-rotation.
你得从12英尺外让刀旋转着飞出去,所以你要像握锤子一样握住刀把,并且让拇指顺着刀刃的方向以保持平衡、防止刀转过头。
I could speed along streets on a bike and throw newspapers onto every porch.
如果我成为一个报童,我可以骑车在街道上飞驰把报纸扔在每一户门廊前。
If I throw up a hammer, then the center of mass and only the center of mass will just go along a perfect parabola as if it were just a tennis ball.
我若是抛铁锤,那么质量重心,也是唯一的质量重心,会沿完美抛物线运动,就像一颗网球。
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