当时，我签署了3个协议。每个调研包有3.2万元服务费。确认后30天付款的翻译：At that time, I signed 3 agreement. Each research package is $ 32,000 surcharge. Confirm payment 30 days after 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

At that time, I signed three agreements. Each survey package with 32,000 yuan service fee. 30 days after payment confirmation

At that time, I signed 3 agreement. Each research package is $ 32,000 surcharge. Confirm payment 30 days after

At that time, I have signed 3 agreements.Each investigation and study package has 32,000 Yuan service fees.Confirms the latter 30 days payments

At that time, I signed three agreements. Each research package service fee is $32,000 . 30 days after confirmation payment

At that time, I signed 3 agreement. Each research package is $ 32,000 surcharge. Confirm payment 30 days after