英语博客-北美风情 105、are you on the ball today?（在线收听）

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　　In this episode we look at expressions that describe someone who is intelligent, prepared, capable of doing some work! Do you know someone like this? Do you know someone who always seems on the ball? If you know someone who is alert and knows how to get the job done, then you may need to use expressions like, to be on the ball, to be on top of it, and to have it together.