You are viewing a single comment's thread from:
RE: Radioactivity: Definition, measurement, life expectancy, source, use, reaction, remedies and treatment
Amr kono group troup nai.so add korar o kono option nai😞😞😞😞 aka akai😩😩
Amr kono group troup nai.so add korar o kono option nai😞😞😞😞 aka akai😩😩