这是我是谁和我做什么。

It is who I am and what I do.

youdao

“这是谁的？”—“是我的。”

"Whose is this?"—"It's mine."

《柯林斯英汉双解大词典》

他表示：“这是重要的体验，从瓶子上斯标签是非常的枯燥，但会使我思考‘看看所有这些垃圾，是谁制造的？’”

"It was an important experience," he said. "Peeling the labels off bottles was extremely boring, but it made me think 'Look at all that garbage."

youdao

The Israelites will want to know who has sent me, Ehheh asher ehyeh And God replies with a sentence, "Ehyeh asher ehyeh."

以色列人还想知道是谁打发我来的，上帝用这句话作答“

耶鲁公开课 - 旧约导论课程节选

But over here, there's a bit of a competition to see who can eat the strongest curry, I think quite often, so.

但是在这边，有一种竞赛是比谁能吃最辣的咖喱，我想这经常发生。

吃烤牛肉 - SpeakingMax英语口语达人

I'm not really sure who said it but it's in a Lynda Barry novel called "Cruddy".

我并不确定是谁说的,不过确信这是在林达·巴里的小说《压花》里的话。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选