The assistant took the book and checked the price on the back cover.店员拿起书，核对了一下封底的定价。Back cover - map and address. address format to be same as name card.封底 - 地图和地址. 地址格式相同名片.And the screen need a back cover.且屏体一般需要加后盖....

back cover的音标：back cover的英式发音音标为：[bæk 'kʌvə]back cover的美式发音音标为：[bæk 'kʌvɚ]...

后壳，后罩...