Kev sib tw rau cov qos yaj ywm qab tshaj plaws tau tuav hauv Belarus
Lub koom haum Vitebsk Zonal ntawm Kev Ua Liaj Ua Teb ntawm National Academy of Sciences ntawm koom pheej ntawm Belarus tuav ib qho kev saj ntawm qos yaj ywm tais diav. Nws cov neeg koom nrog yog ...