伤口愈合的第一个阶段，受损区域的炎症反应刺激一种叫做胶原蛋白的物质生成。

During the first stage of wound healing, inflammation around the damaged area stimulates the production of a substance called collagen.

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他们的反应刺激了英国下议院媒体委员会，该委员会开始考虑这部法律是否需要修改：此事应该立刻提上议程了。

Their concern has pricked the House of Commons media committee to look at whether the law needs changing: it is due to report shortly.

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这种成分被用来平衡产品中的酸碱值，能够引起过敏反应，并刺激你的眼睛、鼻子和皮肤。

This ingredient is used to balance the PH in products, and can cause allergic reactions, and irritate your eyes, nose and skin.

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So, the idea here is, repeated pairings of the unconditioned stimulus and the conditioned stimulus will give rise to the response.

这里的意思是说，无条件刺激与条件刺激的反复匹配,会引起条件反应。

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But what happens through learning is that another association develops that between the conditioned stimulus and the conditioned response.

但学习会在条件刺激与条件反应之间,建立起另一种联结。

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He developed the theory of classical conditioning by making a distinction between two sorts of conditioning, two sorts of stimulus response relationships.

他通过区分两种条件作用,两种刺激反应关系，提出了经典条件作用理论。

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