performance period短语¹⁴⁴⁹⁷²⁺² 基本例句 实现周期 The judges will start one clock at the moment a team member steps on the stage for the5 minutes period, and another clock at the beginning ot the music for the2 minutes performance period. 只要有参赛队员进入舞台，裁判就将开启时钟计时5分钟，只要音乐开始，裁判将启动另一个时钟计时2分钟。 juren