Central and South American leaders who will attend the summit have been urging the United States to adopt a more open policy toward Cuba.

VOA: standard.2009.04.13

Well, you can't adopt the policy of "I'm going to wait for this pig to dance " and when it does I'm going to reinforce it" because it's going to take you a very long time.

那么，你就不能说,“我要等这头猪跳舞,然后再对它进行强化“,因为这会花掉你很长的时间。

耶鲁公开课 - 心理学导论课程节选

Well, you can't adopt the policy of "I'm going to wait for this pig to dance " and when it does I'm going to reinforce it" because it's going to take you a very long time.

那么，你就不能说,“我要等这头猪跳舞,然后再对它进行强化“,因为这会花掉你很长的时间。

耶鲁公开课 - 心理学导论课程节选