How can a utilitarian distinguish qualitatively higher pleasures from lesser ones, base ones, unworthy ones? Yes?

功利主义者何以将性质上更高级的快乐,与较低级，基本无价值的区分开呢，请说？

耶鲁公开课 - 公正课程节选

and Pembroke area there's a place, "the steps", that if you step on the seal,

在彭布鲁克区，有个地方叫“台阶”，如果你踏在了印记上，

布朗的学生们 - SpeakingMax英语口语达人