1、The couple was overjoyed when they found out they were expecting quintuplets.
当他们得知自己即将迎来五胞胎时，这对夫妇欣喜若狂。
2、In music notation, a quintuplet is a group of five notes played in the time it would normally take to play four notes.
在音乐符号中，五线谱符号的五线代表着五个音符，在通常时间内演奏四个音符。