教他一课 meaning in English

to teach him a lesson

One day , when he was seven years old , he came to the curate of palestrina , and asked to be taught to read ; it was somewhat difficult , for he could not quit his flock ; but the good curate went every day to say mass at a little hamlet too poor to pay a priest and which , having no other name , was called borgo ; he told luigi that he might meet him on his return , and that then he would give him a lesson , warning him that it would be short , and that he must profit as much as possible by it
这件事多少有点困难，因为他不能离开他的羊群，那位好心的教士每天要到一个小村子里去做一次弥撒。那个小村子太穷了，养不起一个教士，也没有什么正式的村名，叫博尔戈。他告诉万帕说，他每天从博尔戈回来的时候可以见他一次，利用那个时间教他一课，并且预先告诉他，只能教短短的一课，他一定要特别用功，来利用这短短的见面的时间。