提示：点击例句中的单词，就可以看到词义解释

Assuming your driving the ball or hitting with topspin .

假定你用力击球或以上旋球打击。

I didn 't like using this racquet for hitting topspin or flat groundstrokes . Even though it was mobile , I didn 't like having to ease back on my forehand for fear of my shots flying long .

不论旋转或者平击球，我不喜欢用这球拍击打弹地球。虽然球拍很灵活，但是我不喜欢正手打很容易的球，因为担心球飞出界。

Mobile roadie also builds apps for musicians , for example , and topspin media has a broad portfolio of new media services for bands like organizing fan information and managing content rights .

例如，mobileroadie也为音乐人提供应用软件，topspinmedia为乐队提供多种新媒体服务，比如整理粉丝信息，管理内容权限。

Remember what topspin is all about .

记得关于上旋球所有的状况。

This is the main reason everyone likes topspin .

这是每个人喜欢上旋的主要理由。