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[TED-Ed教育演讲] 动物是如何再生长出肢体的？而人类为何无法做到呢？
How do animals regrow their limbs And why can' t humans do it2026-01-13 编辑：sophie
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[TED-Ed教育演讲] 斑马有条纹的惊人原因
The surprising reason zebras have stripes2026-01-16 编辑：sophie
Severity: Notice
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Filename: libraries/Cache_file.php
Line Number: 28
Severity: Warning
Message: Memcache::connect(): Can't connect to 127.0.0.1:11211, Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
2026-01-13 编辑：sophie
2026-01-16 编辑：sophie
