Idiom: Ace in the hole
Jan 14, 2015, 06:40 AM
A hidden and affective means of winning a conflict. #esltips #idioms Image Source: http://americanenglish.state.gov/resources/loop More info and audio http://en.wiktionary.org/wiki/aceinthe_hole http://learningenglish.voanews.com/content/words-and-their-stories-ace-in-the-hole/1455414.html