Before the Universiade opened, they received special training and held several rehearsal sessions. 在大运会开幕之前，志愿者们就已经进行过多次的培训和模拟演练。
Think of grammar practice as a rehearsal, like a musician playing a difficult piece over and over, or a tennis player practicing his serve. 把练习语法当成一种演练，如同一位音乐家重覆演奏一首困难的曲目，或一位网球选手不断地练习发球。
