每单元包含可供学习10小时的课程，内容包括故事学习、深入探索、巩固提高、文化扩展和本课测试等五个部分。

Every unit includes 10-hour study material, including five modules: the Story, the Exploration, the Practice, the Cultural Expansion and the unit Assessment.

youdao

每单元包含可供学习10小时的课程，内容包括故事学习、深入探索、巩固提高、文化扩展和本课测试等五个部分。

Every unit includes 10-hour study material, including five modules: the Story, the Exploration, the Practice, the Cultural Expansion and the unit Assessment.

youdao