标准教程 Standard Course HSK6: Lesson 19 | Tiếng Trung HSK6: Bài 19 | Biaozhun Jiaocheng HSK6 | Chinese HSK6

标准教程 Standard Course HSK6 | Tiếng Trung HSK6 | Chinese HSK6 | Biaozhun Jiaocheng HSK6

标准教程 Standard Course HSK6: Lesson 19 | Tiếng Trung HSK6: Bài 19 | Biaozhun Jiaocheng HSK6 | Chinese HSK6

第十九课：无阳光的深海世界
Lesson 19: The deep sea without sunshine





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