away是什么词性（away有介词词性吗）

away是副词，含义为：(时间或空间上)离开(某距离);去别处;不在，离开;持续地;直到完全消失

The beach is two miles away.

海滩在两英里外。

Go away.  走开

She was away from work for a week.

她有一个星期没来上班

They were soon chatting away like old friends.

他们很快像老朋友一样聊起天

The music faded away.音乐声逐渐消失

away是副词。如，The dog ran away.