serve a ball

Having dropped serve to trail 5-6, Djokovic swatted a ball hard to the back of the court, inadvertently striking a female line judge in her throat.

当时小德在发球局以5-6落后，他用力地把球打向场地后面，不慎击中了一名女边裁的喉咙。

Game controls: mouse operational control cur direction, click the left mouse button or catch a ball serve said.

游戏操作：鼠标操作控制小人的方向，点击鼠标左键表示发球或者接球。

If you play a net-ball on your serve, that is called net.

若你发球触网但已进入对方正确发球时就叫网球.

Serve a ball being one of fundamental technology of tennis ball, the service technology is also the technology that unique factors such as route, placement, speed, trajectory not accepting to Fang Lai Qiu affects.

发球是网球基本技术之一，发球技术也是唯一不受对方来球的路线、落点、速度、轨迹等因素影响的技术。

For beginners, I recommend the underhand serve. For experienced players I recommend the overhand floater serve. The pitcher let go a fast ball and the batter swung and missed.

对初学者来说，我建议发下手球，对有一定训练经验的我建议发上手飘球。投球手投出一个快球，击球手晃了一下，没有接到。