service ace的用法和樣例：
例句
- An ace is a service which cannot be reached by the opponent with his racket.
發(fā)球得分是指使對方用球拍擊不到球。 - Sampras brought cheers from the crowd at Seoul's Olympic Tennis Arena as he fired down two fierce aces in his first service game.
當桑布拉斯在首爾奧林匹克網(wǎng)球場(chǎng)上開(kāi)始獲得兩個(gè)發(fā)球得分時(shí)，場(chǎng)上的觀(guān)眾報以熱烈的掌聲。
