Saturday's Obama-Chavez encounter was the second of the summit, and provided another opportunity for a handshake between the two men.

VOA: standard.2009.04.18

The second rhythmic device that we have to be aware of in music we frequently encounter is this concept of the triplet.

音乐中第二个需要知道的节奏符号,就是我们经常遇到的三连音

耶鲁公开课 - 聆听音乐课程节选