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你所需要练习发球上网道具仅仅是一个球筐。是的,一个球筐。想要提高你发球上网技术,最好的方式是在比赛中多进行尝试,或是找个搭档一同练习。但在这里讲到的方法,能帮助你在找不到接发球伙伴时,自己就能够进行的练习。
You need to practice serve the Internet props is just a basket. Yes, a ball basket. The best way to improve your serve online is to try more in the competition or find a partner to practice with. But the methods described here can help you practice that you can do if you can not find a service partner.