请问:Payment：T/T,20Day Out Master L/C

请问:Payment：T/T,20Day Out Master L/C 30 day after pay via t.t70 final payment before shipping via t.t. PAYMENT TERM :30%T/T IN ADVANCE ,THE BALANCE PAID BEF ORE THE SHIPPING DAY 请问这句英文的意思是? 请问在一张商业发票中写着：Terms of payment 100%T/T ,请问这个 100%T/T是什么意思,两个TT分别代表什么 外贸订货单上的payment :BY/ T/T 还有 PO Payment:T/T and ESCROW应该是支付方式吧. 英译汉：our payment term：50%t/t in advance,50% balance payment before load the container the terms of payment for the contract is 100% upfront payment by t/t.怎么译? t-ara day by t-ara day by D/A 60 days payment day 20th,请问该怎么翻译?我是做服装外贸的,我发了INVOICE给客人叫他们付款后,他们就发邮件说要D/A 60 days payment day 20th,还给了我们他们的银行信息.请问“D/A 60 days payment day 20th” 外贸英语：什么有意思：Payment:40% T/T in advance; and balance exchange B/L Payment terms: By L/C at sight or T/T advance是什么意思? balance T/T payment before delivery,EN-71 cost collect by payment by t/t.full amount paid against the presentation of china-B/L 求翻译~The payment Form:100% T/T to our Japan Bank with your P/O 2nd payment :50% of contract by T/T one month from the B/L Date It __long before we celebrate the NEW YEAR'S Day.A isn't B hasn't been C wasn't D won't be请问选哪个谢谢.