Double down on (something)—加倍下注，更加堅定 to do something in an even more determined way than before Example: With the market booming, many companies are doubling down on their development in mobile apps and games. (CNN, 201/12/02) Alongside Meryl Streep, Tom Hanks is co-starring in the upcoming film “The Post,” which tells the story of The Washington Post’s controversial...Continue reading