： Each of us has his carrot and stick. In my case, the stick is my slackening physical condition, which keeps me from beating opponents at tennis whom I overwhelmed two years ago. My carrot is to win. 这句话的斜体部分的“carrot and stick”应该理解为A:胡萝卜加大棒B:动力和压力答案:动力和压力 12、