这个训练形式和肩并肩练习形式很像。出了球员使用拉球棒的手。
This drill is performed the same way as the shoulder-to-shoulder drill. except the player USES only the top hand.
在母亲节这一天，一些美国职业联盟的选手通过使用这种球棒来参与乳癌防治的宣传。
Some MLB players are using pink bats today as part of the breast cancer awareness campaign on Mother's Day.
球棒和它所使用材料的构成有关系吗？
Does the material out of which the bat is constructed matter?
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