class hour
短语词组
- zero -class-hour 听力零课时
- Zero -Class-Hour approach 写作零课时
- Limited class hour 有限的课时
- class hour class period 一节课的时间
- theory class hour 理论学时
- Class Hour Arrangement 课时安排
- few class hour 小学时
- class hour explanation 课时说明
- training class hour 培训课时 返回 class hour