be on the ball
be on the ball是什么意思、be on the ball怎么读
在精力充沛地行动, 知情, 内行
be on the ball汉语翻译
在精力充沛地行动, 知情, 内行
be on the ball英语解释
动词 be on the ball:
- be well-informed同义词：know the score, be with it, know what's going on, know what's what