1、a tennis return made with a downward motion that puts backspin on the ball.
在網(wǎng)球中用一個向下的動作來使球旋轉(zhuǎn)回去。

2、You are learning the backhand topspin and backspin serves.
你在學習發(fā)反手上旋球和下旋球。

3、More backspin will slow the ball down and let it drop into the court.
更多的回旋會減球速，使它掉進場內(nèi)。

4、a tennis return made with a downward motion that puts backspin on the ball
在網(wǎng)球中用一個向下的動作來使球旋轉(zhuǎn)回去。

5、To impart backspin to by striking downward as well as forward, as in golf and baseball.
在網(wǎng)球中用一個向下的動作來使球旋轉(zhuǎn)回去。

6、This allows the player to put more backspin on the ball by cutting down and forward on the ball.
這樣可選手可以通過往下往前切，對球產(chǎn)生更多的回旋。

7、This backspin makes the ball easier to catch.
后旋球容易接。

8、Put the stripe horizontally and view how much backspin shows up when you hit low.
班半色球擺成水平，用低桿擊球入袋，這時我們看看反旋轉(zhuǎn)能維持多久。