Toj.su
Manzur az masalai gazi oksigen (kislorod) dar in jo ba tavri
suny nafas dodani baze bemoron meboshad. Gazi oksigen hej guna
mavodi ioiero dar tarkibi khud faro namegirad va az rohi nafas ba
shush vorid meshavad. Binobar in, on shikanandai ruza ba shumor
nameravad.
Dar boramon
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