It's not just moving to the ball, but positioning the chair so that you can generate power with your strokes.

不仅要向球移动，还要控制好轮椅的位置，这样你在击球时才能使上劲。

youdao

You must hit the ball before it reaches its highest point after bounce. You should learn to use short and quick strokes with little backswing.

你必须在球弹起之后到达它的最高点之前击球。你应该学会用小的引拍动作，用短促的爆发力击球。

youdao

Practicing your strokes on land while bouncing a physio ball can help you get a better idea of what's needed in the water.

练习你的泳姿在陆地上弹回的球可以帮你，在水里是个好主意。

youdao

On occasion the system seemed to pick up our random Wiimote stylings and reflect them in our onscreen character when the ball wasn't on his side of the court, but when it comes to hitting the tennis ball the game is just picking up predefined strokes.

ENGADGET: Wii MotionPlus review: it works, but so far the games aren't worth the fuss