我来到新墨西哥州的圣达菲的一个专门为担心气候变暖的人们开设的商店里。 那里有一些粗麻布，还有一些陶器和海报，上面印有关于保护地球的标语。

I went to a shop in Santa Fe in New Mexico -- a trendy shop for concerned people, where there was a lot of hessian, and earthenware products and posters with slogans about the earth.

youdao

为这事担心无济于事。

It's useless worrying about it.

《牛津词典》

她度过了许多不眠之夜，为他担心。

She had spent many wakeful nights worrying about him.

《牛津词典》

And so ultimately one of the messages we'd like to send today is that if you are the type who's kind of on-the-fence don't think this is for you, worried about hurting your GPA or anything like that.

最终，我们想告诉你们的是,如果你是那种对分数不太在意的人,这种打分制就不是为你准备的，担心影响你的学分绩点之类的东西。

哈佛公开课 - 计算机科学课程节选

But you're starting to really feel concerned about this old woman, so you say, "Let me hold your bag."

但是你开始为她担心了，于是你说，“Let me hold your bag.”

Let me 课堂 - SpeakingMax英语口语达人

All right. If the derivative is small, it's not changing, maybe want to take a larger step, but let's not worry about that all right?

好，如果导数很小的话，函数就基本没什么变化,可能我们就想把步子迈大一点儿了,但是别为这个担心？

麻省理工公开课 - 计算机科学及编程导论课程节选