And what this is in a very general sense is the learning of an association between one stimulus and another stimulus, where stimulus is a technical term meaning events in the environment like a certain smell or sound or sight.

一般来说,经典条件作用是指在一个刺激,和另一个刺激之间形成联结，这里的刺激是一个专业术语,意思是环境中出现的事件,比如某种味道，声音或景观。

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Like the legal intern delivering coffee and learning what it takes to be a good lawyer, their most significant impact in the role is not achieved in a short time, but rather in avoiding being too much of a distraction in the short-term and learning how to have a real impact in the long run.

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Targacept's pill is more refined, he says, because it binds with a subtype of neuronal nicotinic receptor situated mostly in parts of the brain that process sensory information and aid in learning and short-term memory.

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Hackers try to build the best services over the long term by quickly releasing and learning from smaller iterations rather than trying to get everything right all at once.

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