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Member for
3 ปี 5 เดือนAge: 10
Level: 4
Language: Malay
(ms)
ไอดี: 1127205
28/06/2021
Country code: MY
Country: Malaysia
Main content: Fenomena pantulan bunyi (1419851)
From worksheet author:
Bunyi dan sifatnya
Other contents:
Sifat bunyi
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