n.持续，持续的时间，期间( duration的名词复数 )，（时间的）持续，持久，连续，[语音学]音长，音延...

durations的音标：durations的英式发音音标为：[djʊ'reɪʃnz]durations的美式发音音标为：[djʊ'reɪʃnz]...

The average and median durations of unemployment also fell.平均失业期及普遍失业期也减短了.The previous three steps incorporate the level switches to determine the durations.以前的三个步骤结合水平开关确定时期.Different note or durations are an essential...