penguin的词根为peng例句1、That's why Penguin research is so important.这也正是企鹅研究很重要的原因。2、Key started the game space, Penguin began to move forward.空格键开始游戏,企鹅开始向前走。3、One day, the penguin and the polar bear plays together.一天,企鹅和北极熊在一起玩。