现在，主要的挑战是找到合适的材料来打印衣服，我指的是你放入打印机的材料。

Now, the main challenge was to find the right material for printing clothes with. I mean the material you feed the printer with.

youdao

我指的是你得付出的一切。

I'm referring to everything that you have to offer.

youdao

它会让你忘记你女朋友，我指的是你前女朋友。

It will get your mind off of your girlfriend, I mean your ex-girlfriend.

youdao

There's--in law, a "natural person" is you and I, people real flesh and blood individuals are called natural persons.

在法律上,"自然人"是指像你我这样的人,有血肉之躯的人被称作自然人

耶鲁公开课 - 金融市场课程节选

What I mean is when you wish to express that you are sorry if you've done something wrong

在这里我是指，你想要表达的是，如果你确实有过失，你感到很抱歉，

I'm sorry 课堂 - SpeakingMax英语口语达人

There's a tendency for loyalty to friends -that's your own friends--and there's this word, other people.

人们还倾向于忠于朋友,我是指你自己的朋友,还有一个词叫做外人

耶鲁公开课 - 金融市场课程节选