durations的例句（durations在句子中的用法）

• Different note or durations are an essential element in rhythm. 不同音符时值是节奏的基本构成要素.
• 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.
• The average and median durations of unemployment also fell. 平均失业期及普遍失业期也减短了.