Any pupil who cannot keep up has to repeat the year .
任何一个不能跟上进度的学生都需要留级。
A small number of adults and children with cataracts may benefit for a short time from eyedrops that widen ( dilate ) the pupil .
散大瞳孔的眼药水可能会使一小部分患有白内障的成人和儿童的症状得到短期的缓解。
I was the pupil in one such relationship 40 years ago .
40年前我是一名和老师发生那种关系的学生。
Princeton psychologist daniel kahneman showed several decades ago that pupil size increases in proportion to the difficulty of a task at hand .
早在几十年前,普林斯顿心理学家丹尼尔卡尼曼就证明了瞳孔大小和接手任务的难度大小成正比。
Pupil performance lags the rest of new jersey by over 20 points .
学生的成绩落后于新泽西州其它地区超过20个百分点。
But I wasn 't a good pupil and was eventually expelled .
但我不是个好学生,最终被赶了出来。
Participants were told to press a button at any point during a 10 second interval , and their pupil size correlated with the timing of their decision .
Kahneman says in his book " thinking fast and slow " that he could divine when someone gave up on a multiplication problem simply by watching for pupil contraction during the experiment .