trioyoudaoicibaDictYouDict[trio 词源字典]
trio: see three
[trio etymology, trio origin, 英语词源]
trio (n.)youdaoicibaDictYouDict
1724, "composition for three voices," from French trio (c. 1600), from Italian trio, from tri- "three" (see three); patterned on duo. Meaning "group of three persons" is from 1789.