1.四度音阶
2.(古代的)四弦乐器
1.a group of four musical notes, the first and last of which form a perfect fourth, used principally in ancient Greek music
1.' " memory says Weierhaimu, " I say is, next she asks, ' is world head then rich do not play tetrachord ?
威尔海姆回忆说,“我说是,然后她问,‘那世界首富就不弹四弦琴了吗?’”
2.After knowing who Buffett is, a girl asks to the office, ' is our tetrachord teacher the 2nd wealthy person?
知道巴菲特是谁后,有个女孩到办公室问,‘我们的四弦琴老师是世界上第二富有的人?