中国体育总局严格控制运动员的食物来源

<span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;">只在关键比分和追赶比分这两种情形下方可使用。</span>

<p style="margin-top: 6px; margin-bottom: 6px; line-height: 24px; color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; text-align: justify;">发强烈下旋球的秘诀</p>

<p style="font-family: arial, 宋体, sans-serif; margin-top: 6px; margin-bottom: 6px; line-height: 24px; color: rgb(51, 51, 51); text-align: justify;">，如果接触球时，</p>

<p style="font-family: arial, 宋体, sans-serif; margin-top: 6px; margin-bottom: 6px; line-height: 24px; color: rgb(51, 51, 51); text-align: justify;">。两膝微曲，身体重心</p>

<p style="font-family: arial, 宋体, sans-serif; margin-top: 6px; margin-bottom: 6px; line-height: 24px; color: rgb(51, 51, 51); text-align: justify;">执拍手继续向右后方引拍</p>

<p style="font-family: arial, 宋体, sans-serif; margin-top: 6px; margin-bottom: 6px; line-height: 24px; color: rgb(51, 51, 51); text-align: justify;">前上方挥拍，身体重心</p>

<p style="font-family: arial, 宋体, sans-serif; margin-top: 6px; margin-bottom: 6px; line-height: 24px; color: rgb(51, 51, 51); text-align: justify;">，球拍随势挥至前额处</p>

<span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;">&nbsp; &#8203;发球的旋转：一是</span>

<span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;">；三是能以不同的</span>

<span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;">正手发奔球</span><br style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;"/><span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;">　　1、 特点：球速急、落点长、冲力大，发至对方右大角或中左位置，对对方威胁较大</span><br style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;"/><span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; line-height: 24px; text-align: justify;">　　</span>