英语翻译不各种风险成本得情况下,一个平均30人左右的支行,在没有贷款的情况下,大约需要2亿元存款才能保本.

In the situation of variety risk cost, A branch bank which has 30 employees but no loan needs 2 billion bank deposite to breakeven.

In various situation of cost risk, a branch bank of about 30 employees which without loans needs at least 2 billion bank deposite to keep breakeven.

Regardless of all the risk costs and without any loan,a branch-bank with 30 people in average,would need about RMB 200 million deposit to avoid loss
我感觉还是我翻译的好!