You also cannot help smiling like a kid, a response that makes the player's role in such a serious videogame a pretty strange thing.

你不禁笑得像个孩子，在这样严肃的电子游戏中，这个反应使玩家角色变得相当奇怪。

youdao

"Have I heard of him?" he asked, smiling in response.

我曾经听过他吗？他问道，笑着回应道。

youdao

When your temper has flared, the last thing most people want to do is smile. However, smiling lowers your body's stress response.

当你感觉自己生气的时候，大部分人最不想做的事就是微笑。但是，微笑会帮助降低你身体的压力反应。

youdao

"I'd have to say never, " he said, smiling with his response.

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Results show that high delayers are more successful at not pressing the button in response to a smiling face.

NEWYORKER: Don��t!

Marco Iacoboni, a lab director at the UCLA Brain Mapping Center, says when people see a smile, so-called mirror neurons fire in their brain and evoke a similar neural response as if they were smiling themselves.

WSJ: Stress-Busting Smiles