"to make the characteristic sound of a cow," 1540s, of imitative origin. Related: Mooed; mooing. The noun is from 1789. Baby-talk moo-cow (n.) attested from 1812.
权威例句
1. The cow says "moo-moo".
奶牛“哞哞”叫。
2. Moo mini - cards are cooler than regular business cards, because they're small and attention - grabbing .
小型 Moo 卡比一般的商业名片要酷, 因为它们更小,更容易吸引别人的眼球.
3. The cow asks the horse, Moo, where s John, the farmer?
母牛问马说, “哞, 农夫约翰在哪儿? ”
4. Opinion polls indicate Roh Moo Hyun will survive the referendum.
不过民调显示卢武弦将会赢得公投.
5. Mr Abe and President Roh Moo - Hyun have agreed to meet.