Base curry kia hoti ha?

Assalamo alikum me fourm aur trading mn new hun lehaza jo meray zehn mn swalat a rahay hain ic fourm pay ap logo say rehnumai lena pasand kru gi. Me nay aik jga suna ba base currency k baray lekin sahe tarha idea nai hua. Kia ap wazahat kr sktay hain base currency kia chez ha.