在课上,是in the class 还是on the class

在课上,是in the class 还是on the class at the class还是in the class还有是in class还是at class.晕了. 在课堂上,是in the class,in classes,in class on class是什么意思,在课上?等于in class? 英语on the class与 in the class的区别 in the next class还是in next class he studies hard in class还是in the class in the class ,on the class 与at the class 分别是什么意思 ? Many girls in our class ___(上舞蹈课)on weekends in the Children 上课在英语中的固定说法是on class还是in class? my experience in class还是on class In,the,class.翻译.