walk 最常用词，中性词，指除跑、跳之外所有移步的动作。
stride 着重步子大而且节奏有力，流露出匆忙、烦恼、得意等情绪。
stroll 多指走走停停，步子缓慢，悠闲自得，漫无目的。
strut 指大摇大摆地走，含过分自信或自高自大意味。
pace 指踱步，走步。
参考例句
1. He paces his yard every morning 他每天早晨都在院子里踱来踱去。
2. I cannot walk at that pace. 我不能以那种步速行走。
3. The pace of human progress it is. 人类前进的步伐正是如此。
英英解释
n.
1. the rate of moving (especially walking or running)
2. the distance covered by a step
3. the relative speed of progress or change
4. a step in walking or running
5. the rate of some repeating event
6. a unit of length equal to 3 feet; defined as 91.44 centimeters; originally taken to be the average l v.
1. walk with slow or fast paces
2. go at a pace
3. measure (distances) by pacing
4. regulate or set the pace of
