双打: doubles开始: begin; start; initiate; comm ...时: shí]一次: once发球: serve a ball; serve; service权: counterpoise; weight power; ...一次发球权: one hand失去第一次发球权: one down; one hand out; one out（双打）第一次发球员: first server两次发球权: two hands; two-hands第一次发球: first service第一次发球员: first server第一次发球成功率: first serve average第一次发球得分率: first serve point average第一次发球的回球: first return发球权: right court; right of serve; right of service; right to serve; right to service无发球权，失发球权: hand-out开始时: at the beginning; first of all第一发球权: first inning丢发球权: loss of service交换发球权: the exchange of service失发球权: loss of service; retired无发球权: down; hand out; handout; out有发球权: hand-in双打发球区: doubles service court
