1. Gone is the past participle of . (go)的過(guò)去分詞

2. ADJ When someone is gone, they have left the place where you are and are no longer there. When something is gone, it is no longer present or no longer exists. 離開(kāi)的; 不在的[v-link ADJ]

He knows how hard it was for her while he was gone. 他知道他不在的時(shí)候她有多難。

He's already been gone four hours!

他已離開(kāi)4個(gè)小時(shí)了！