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Member for
3 ปี 7 เดือนAge: 10-15
Level: 7
Language: Czech
(cs)
ไอดี: 2042233
19/05/2022
Country code: CZ
Country: Czechia
Main content: Optika (2003357)
From worksheet author:
Optika - pohyb světla
Other contents:
Optika - pohyb světla
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