急~！！哪位好心人能帮我翻译下这段英语啊？

after signing agreement(签合同后)
within 3 days.(三天内)
prepay(预付)
the money according to agreement（合同金额）

Prepaying 40% money according to agreement within 3 days after signing it,
we will pay the rest in one month after shipping.

签订合同后三天内预付合同金额的40%，余款在船运后1个月内付清
Within 3 days after signing the contract, the contract value in advance in shipping 40% balance after paid within 1 month

payment of 40% contract sum as deposit within 3 days after signing of this agreement is required. Balance is due and payable in full within one month after shipment.