By the method of sawing and saw blade swing taking the line of saw-teeth of saw blade's working side for centre, saw blade always works toward the tangent of sawing curve.
采用锯机连同带锯条一起以带锯条工作边锯齿齿尖连线为中心作回转摆动的方法，实现带锯条始终沿着锯切曲线的切线方向进行锯切。
The needle needs to swing more toward accepting responsibility for the entire process and making sure that the bad events—cost overruns, failures, and the like—don't occur.
在整个过程中，我们要承担责任，而且确保那些不好的事情，如超支、失误、等等，不会发生。
The first step is to make a good upper-body turn, and then, when you uncoil your shoulders, swing out toward the target.
因此第一步你需要把上半身转动到位，然后，你顺势展开肩部，挥拍击球。
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