This water pump -- called the Super Money Maker -- is designed to make a big difference in the lives of rural Africans.

VOA: standard.2010.08.09

But whether or not you do so doesn't seem to make a big difference.

但不论你是否选择这样做,都不会有什么太大的影响

耶鲁公开课 - 心理学导论课程节选