问题描述： 解释如何用牛顿第三定律的证明棒球选手打棒球和球棒（用英语）~ 1个回答 分类：英语 2014-11-06 问题解答： 我来补答 Action is equal to reaction acts in a contrary direction.when bat beats the baseball, the acting force from bat and reacting force from the baseball, and the two force act to each other, but in a contrary direction. 展开全文阅读
