Rosa:Slow down,Carl. I can't keep up with you. 卡尔,走慢一点. 我跟不上你. Carl:You walk as slowly as a snail. 你走的跟蜗牛一样慢. Rosa:How do you keep so fit? 你是怎么保持这么健康的呢？ Carl:I work out as often as I can. 卡尔:我尽可能地经常运动 .
