And that is the whole point of the exercise." Since Africa Command was established last year, critics have argued the purpose of the command is to militarize American foreign policy on the continent.

VOA: standard.2009.10.20

Since the connection with the poker chips is established through classical conditioning, sooner or later by that logic the poker chips would lose their power to serve as reinforcers.

因为与扑克筹码有关的联结,是通过经典条件作用建立的，所以按照这种逻辑,扑克筹码迟早会失去强化物的作用。

耶鲁公开课 - 心理学导论课程节选

Since the connection with the poker chips is established through classical conditioning, sooner or later by that logic the poker chips would lose their power to serve as reinforcers.

因为与扑克筹码有关的联结,是通过经典条件作用建立的，所以按照这种逻辑,扑克筹码迟早会失去强化物的作用。

耶鲁公开课 - 心理学导论课程节选