T/T 30% in advance.70% balance when see the b/l copy.该怎么做

T/T 30% in advance.70% balance when see the b/l copy.该怎么做 30%T.T in advance,the balance by the copy of B/L within 10 w T/T 30% deposit in advance,the balance against BL copy FIRST PAYMENT 10%T/T,the balance against the copy of the b/l PAYMENT TERM :30%T/T IN ADVANCE ,THE BALANCE PAID BEF ORE TH 30%T/T in advance as deposit,and 70% balance upon delivery. 英语翻译一位厄瓜多尔的客户说的付款方式是：T/T 30% in advance ,than the balance ag 英译汉：our payment term：50%t/t in advance,50% balance payment b 英语翻译急求翻译30%T/T in advance,70%L/C at 30 days after B/L date o T/T payment against the copy of B/L in one time 英语翻译T/T 30% prepaid,70% paid against copy of B/L 外贸英语：什么有意思：Payment:40% T/T in advance; and balance exchange