英语词汇“be on the ball”的释义、用法及例句翻译-英汉例句词典

词汇	be on the ball
例句	With so many intelligent students, the teacher must always be on the ball.班上有那么多聪明学生，老师上课时必须时刻随机应变
随便看	Billington billion billionaire billion-dollar billions billionth billionth of a second bill of exchange bill of fare bill of health Bill of Rights bill of sale billow billowed billowing billow in the wind billows bill payable bill payable on demand Bills bills Billy billy billy goat billy-o

依恋情感网英汉例句词典收录262915条英语例句词条，基本涵盖了全部常用英语单词的释义及例句，是英语学习的有利工具。