1.he’s＝he is

翻译为：“他是……”

2.( he’s＝he has)＋过去分词

翻译为：“他已经……”

尤当 has 为助动词时，he is 或 he has 的常用口语形式

例句：

He's been working in a bank since leaving school.

他中学毕业以后一直在一家银行工作。

He's good at making things with his hands.

他善于手工制作物品。