run-ups的翻译，读音
释义：
n. 抬高( run-up的复数形式 ); 将引擎加速使热以供试验; <英>事件的前奏曲; 预备阶段
n. a substantial increase over a relatively short period of time
n. the approach run during which an athlete gathers speed
n. a substantial increase over a relatively short period of time
n. the approach run during which an athlete gathers speed