【 Wonder英文有声书 】chapter 64 Detention

detention

Detention is a punishment for naughty schoolchildren, who are made to stay at school after the other children have gone home.

jumble (jumble up)

If you jumble things or if things jumble, they become mixed together so that they are untidy or are not in the correct order. 

slate

If you start with a clean slate, you do not take account of previous mistakes or failures and make a fresh start. 从头开始; 改过自新

suspend

to officially prevent somebody from going to school or doing their job