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B1 Intermediate
Chinese
29:54
Educational
細思極恐，宇宙是被人為設計出來的？15個宇宙中最可怕的發現，看得讓人絕望｜#世界之最top #世界之最 #冷知識 #腦洞大開 #top10 #地球之最 #排名
Learning Stats
B1
CEFR Level
5/10
Difficulty
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