Psychological gears cannot be reversed at a snap of the fingers.

心理上的齿轮不是弹指间就可逆转的。

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At the moment when the two trains gave the illusion of being stationary, a blind in one of the carriages flew up with a snap.

正当两列火车给人一种静止不动的错觉时，其中一节车厢的一个百叶窗啪的一声飞了起来。

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At the end of the puzzle session, the participants were asked to make a snap decision about the products.

在智力游戏结束后，参与者被要求对他们所要购买的产品快速做出决定。

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At the moment the most likely result of a snap election - as the ever-acute Conservative Home website points out here - would be a Labour government.

BBC: Reconciliation and rebuilding?

For example, if you are at a shoe store, you can snap a pic of a row of black heels and it will overlay your photo with the info and reviews on each shoe so you can make a decision.

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Researchers at Griffith University have managed to snap the first image of a single atom's shadow and, while the dark spot may be physically small, the implications for the field of quantum computing are huge.

ENGADGET: Researchers capture a single atom's shadow, has implications for quantum computers