学习，睡觉，聚会：三选二。

Study, sleep, party: Choose two of the three.

youdao

三分之一无子女的受调查者选儿子，三分之二的人没有偏好，只有不几个人选择了女儿。

One third of those without children said a son, two-thirds had no preference and only a residual said a daughter.

youdao

如果只有12个球队选秀的话，他不是在第二轮末尾就是在第三轮初被选择。

He should go in the early third round if not late second round in most 12-team drafts.

youdao

the winner is the person whose number is closest to 2/3 times the average The winner will win $5 minus the difference in pennies between her choice and that two-thirds of the average."

所选数字最接近2/3倍平均数人是赢家,赢家的奖金是5美元减去,所选数和平均数三分之二之差的百分数

耶鲁公开课 - 博弈论课程节选