十日内英文

The goods will be delivered within 50 days after the receipt of deposit.如果要表达必须的意思，则可将will改成shall。一般合同还应该更详细，更拗口，如goods会说成contract goods，deposit可能会注明是那一条规定的数量等等。

前面朋友回答很好

Party A shall make payment of sixty thousand yuan to the account of Party B by means of cable transfer within 10 days upon the conclusion of this contract.

你的意思应该是：收到定金50天之后的十日内发货 。所以英文应该是：the goods will be shipped within 10days since 50 days after receiving payment

the ninth day 第九天the tenth day 第十天the eleventh day 第十一天the twelfth day第十二天the thirteenth day第十三天the fourteenth day第十四天the fifteenth day第十五天