Hope you left housekeeping a hefty gratuity.

希望你给客房服务的小费足够丰厚。

To examine the relationship between gratuities and opinion, researchers asked 20 art experts and 20 non-experts to view a series of paintings. But first, subjects were shown the logo of a fictitious company that would be giving them $300 for participating.

" 小恩小惠" 与舆论间的联系，研究人20位艺术家和20位非专家观看一系列的绘画作品。但是，在观看前研究人向他们展示了一个虚拟公司的logo，并给他们300美金作参与费。