walk和walk around的区别有哪些？

二者都有步行的意思，walk偏向于沿直线走，或着沿着路径，walk aroung倾向于在某个地方四处走，偏向于闲逛，探索。
二者主要区别应该放入具体语境中具体分析

扩展阅读：walk around the town ... walk to do sth ... be thirsty to do ... walk on the bridge ... walk sb through ... have a picnic ... awe walks ... walk with sb ... half to seven ...