"Pulpng the ball" (also known as "backspin" or "underspin") is a shot in which the ball is hit with a downward motion, causing it to spin backwards and move in a downward trajectory after it bounces. This shot is often used in tennis and table tennis to keep the ball low and make it more difficult for the opponent to return.

The term "pulpng the ball" pkely comes from the fact that the downward motion of the shot causes the ball to move downward, as if it were being pulled by an unseen force.

Here are some example sentences using "pulpng the ball" in a tennis context:

"She used a lot of backspin on her shots, making it tough for her opponent to return them."
"He pulled the ball well today, keeping his shots low and making it difficult for his opponent to get to them."
"She was able to hit some great backspin shots, causing the ball to dip and bounce erratically."

中文翻译：

"拉球"（也称为"后旋"或"下旋"）是一种球被以向下的动作击打的打法，使得球在反弹后旋转向后并以向下的轨迹移动。这种打法通常在网球和乒乓球中使用，使球保持在低位，使对手难以回击。

"拉球"这个词可能来自于打法的向下动作使球向下移动的事实，就像是被一股看不见的力量拉住了一样。

以下是一些使用"拉球"的网球场景的英文例句：

"她在打击中使用了很多后旋，让她的对手很难将球回击。"
"他今天拉球打得很好，使他的球保持在低位，让对手很难追上。"
"她能够击出一些优秀的后旋球，使球下坠并且跳动不定。"