n. 好的一面，优势；（股票价格）上涨 prep. <美，非正式>对着……一侧 The painting was hung upside down. You turn the map upside down. When his wife died, his entire world was turned upside down. It’s upside down. 上下颠倒了。
n. 好的一面，优势；（股票价格）上涨 prep. <美，非正式>对着……一侧 The painting was hung upside down. You turn the map upside down. When his wife died, his entire world was turned upside down. It’s upside down. 上下颠倒了。