By designing test cases based on class descriptions, one is able to test the system at a deeper level.
通过设计基于类描述的测试用例，一个人能够在较深的级别上测试系统。
Take the time to look at class descriptions and syllabi.
花点时间去了解课程内容和教学大纲。
Class descriptions: intro to yoga , level 1, level 2, level 3, lunchtime class, relax & restore, pre-natal yoga, post-natal yoga.
课程介绍：瑜伽入门，1，2，3级练习，午间瑜伽，孕妇瑜伽，产后瑜伽，放松与恢复。
Class descriptions: intro to yoga , level 1, level 2, level 3, lunchtime class, relax & restore, pre-natal yoga, post-natal yoga.
课程介绍：瑜伽入门，1，2，3级练习，午间瑜伽，孕妇瑜伽，产后瑜伽，放松与恢复。
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