late 14c., "writer of commentaries," agent noun in Latin form from comment or commentary (Latin commentator meant "inventor, author"). Middle English also had a noun commentate, attested from early 15c. Meaning "writer of notes or expository comments" is from 1640s; sense of "one who gives commentary" (originally in sports) is from 1928.
"Well, Jem, what is a commentator?["]--"Why," was Jem's reply, "I suppose it must be the commonest of all taturs." ["Smart Sayings of Bright Children," collected by Howard Paul, 1886]
双语例句
1. A. M. Babu is a commentator on African affairs. A. M.
巴布是一位非洲事务评论员。
来自柯林斯例句
2. They're so lacking in confidence in the attraction of the games they televise that they feel they have to hype up with some hysterical commentator in order to get anyone to watch them.