pack和wrap的区别？
pack表示"将,,,,装箱打包",暗示这个人要外出旅行或离开某地.
wrap表示"包裹,包装",只是把某些东西包好,但并没有要外出的意思.如下面的句子:
He is packing now , for he is leaving for Shanghai tomorrow.
Please wrap the tie up for me ,I will buy it.
