Dinosaur-fan.
UID: 87, Registered at 2023-9-20 19:29:47, last login at 2023-11-25 16:00:36, currently offline.
Solved 6 problems, RP: 18 (No. 245)
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Bio
这个学校里还有很多的苦难正在发生
另注：有事化竞找我
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Recent Activities
This person is lazy and didn't join any contests or homework.