有时大炮是固定的位置，其他时候你必须使用发射它的力量把它推到一个你可以击中球的点。

Sometimes the cannon is fixed in position, and other times you have to use the force of firing it to push it into a spot where you can hit the ball.

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杰克：哇！他们能击中球。

Jake: And boy, they can hit that ball!

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打者在球接近20英尺必须下决心击中球。

Batters must make up their minds to hit the ball long before the ball approaches within 20 feet of the plate.

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