A professor in a class of 30 random students offers to bet that there are at least two people in the class with the same birthday (month and day, but not necessarily year).

有个教授打赌说他班上的30个学生中至少有两个生日在同一天(同月同日，可以是不同年)。

youdao

Of course, if you choose to not learn the lessons, you will have to repeat the class, either in the same lifetime with a similar teacher, or in a new lifetime in a similar situation.

当然，如果你选择了不去学习这些课程，你就不得不重复学习，或者在本次轮回里跟类似的老师学习，或者在类似的环境里在新的轮回中重新学习。

youdao

They are no longer concerned even with satisfying the customer (who generally is not somebody whom he runs in the same social circles with, but instead is a regular middle-class person).

FORBES: Capitalism, After The Election