国际长途电话的电话费是每分钟4元8角，奶奶给姑姑打电话一共用了6分钟一共要付7A.\9e)g:\6|9x6L7B8{3M;a:R元9l1@*X/c)Y6S+c1a(V角电话费。*u9I.^:x7e'e2},j-`6u*o(R2H