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I wonder how did the first man find this ??
can you prove one of them starting by the lift side ![]()
thank so much for this information
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I am 18 years old .
I am a new student in US.
right now I study english because my english is not very well
but I also love math
, so I tried to find The best way to improve them both.
I hope I found the best way. ![]()