preparating before class

• 课前准备

preparating before class的用法和样例：

例句

1. Hogan is not prepared for class.
   没有做好课前准备。
2. Missing class on a day when you have work up for workshop discussion will count as two absences.
   千万别无故缺席，准时来上课，做好课前准备并参与课堂活动。