我们很忙碌 on one's toes 意思就是忙碌的 例句：I work with people who are half my age so that keeps me on my toes. 我和只有我年龄一半大的人一起工作，所以够我忙的。 You have got to stay on your toes when you're playing squash so that you're ready to move anywhere. 在打壁球时你必须保持警觉，准备着向任何地方移动。 这里的stay on your toes表示保持警觉。 hehe`~...
