sir,
assalamualikum.ami chittagong university te chemistry te porce. amader 1st year exam ses hoyece.akon 2nd year class colce.tai sir 2nd year ar boi kinte 4000 takar moto lagbe.bolte kharap lagleo bolce koron apni taka na dile amer porasuna kora sombob hoto na.tai sir takata pale taratari boi kinte partam.