短語詞組短語backhand topspin service 發(fā)反手下鏇球backhand court service line 反手區(qū)backhand quick service 反手發(fā)急球Backhand d service 反手發(fā)球backhand backspin service 發(fā)反手下鏇球backhand crosscourt service 發(fā)反手斜線球fast backhand crosscourt service 發(fā)快速反手斜線球 返回 backhand service