人体英语趣说之knuckle指节，指关节

knuckle In the past, physical punishment was practiced in many schools. One kind of punishment was rapping on the knuckles. It was inhuman to punish children that way . Today physical punishment has been done away with in schools in most countries. we can use the word as a verb. Are there any bullies in your school？ Brave ，upright boys and girls will never knuckle under to bullies. When examinations draw near ，as a good student, you will kuckle down to revision. 从前许多学校都实行体罚，其中一种体罚就是敲击指节。这种惩罚学生的方式很不人道，今天许多国家的学校都已废除体罚了。 我们可把knuckle做动词来用，你们的学校有没有以大欺小的恶人呢？勇敢而正直的青年人绝不会向这些恶人屈服（knuckle under）。作为一个好学生，考试临近的时候，你就会knuckle down to revision（认真温习功课）。