A pupil is not above his teacher; but everyone, after he has been fully trained, will be like his teacher.路6:40学生不能高过先生．凡学成了的不过和先生一样。
A teacher can't give individual attention to each pupil if his class is large.如果班上的人数多，老师就不能给予个别辅导了。
A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupi光度视网膜亮度单位，相当于每平方米有一烛光亮度的表面，通过一平方毫米的瞳孔区域，到达视网膜的光线数量
According to its clinical characteristics such as rust-colored conea, marked anterior chamber reaction, dilated pupil wi由临床表徵如单眼角膜全层有铁銹色之沈着物、前房反应厉害、瞳孔较大且对光反应不佳、白内障及眼压高等而怀疑有眼内异物。
Although I have white temples,I still call you from my heart, teacher. In front of this holy and lofty word, I am a pupi即使我两鬓斑白,依然有\由衷地呼唤您一声--老师!在这神圣而崇高的字眼面前,我永远是一个需要启蒙的学生!