I can't quite tell how they've determined this, but it has to do with something called MHC genes, which affect immune responses, and smelling T-shirts.

我不太清楚他们得出这一结论的具体过程，但它和一种被称为MHC基因的物质有关。这种物质可以影响免疫应答以及对T恤的嗅觉。

youdao

"I don't think at this point there is evidence that that can be done in a consistent way because people do tend to regain weight."

VOA: standard.2010.07.16

I can't, I can't do this. I'm so excited that I can't eat lunch.

我实在太兴奋了，以至于我都没法吃午餐了。

so that 课堂 - SpeakingMax英语口语达人

So you know from algebra I can't actually solve this. There may be multiple solutions to this. What would I have to do to change my code? And the answer is fortunately not a lot.

我解不出来方程,可能会有多组答案,我需要怎样修改我的代码呢？,很幸运的,答案是不用修改很多。

麻省理工公开课 - 计算机科学及编程导论课程节选

"I thought, 'I can't do this, '" Amato says.

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"When I take a groups of women out into the cold environment, they are a lot more unsure, their default position is 'I can't do this, '" she said.

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And if you see her, won't you please say hello, because I don't know if I can do this alone.

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