mid-15c., apparently from Middle English noun blabbe "one who does not control his tongue" (late 13c.), probably echoic. Related: Blabbed; blabbing. The exact relationship between the blabs and blabber is difficult to determine. The noun was "[e]xceedingly common in 16th and 17th c.; unusual in literature since c 1750" [OED].
权威例句
1. Her mistake was to blab about their affair.
她错在说出了他们的婚外情。
2. She'll blab it all over the school.
她会满学校乱说。
3. He blab bed my confidences to every one.
他把我告诉他的知心话告诉了每个人.
4. Who will open himself to a blab?
谁愿向一个不肯守口如瓶的人说心里话 呢 ?
5. She will be sure to blab and it will be all over the town in no time.