We will receive approval or disapproval by next week.
我们下周就能知道他是否通过。
We expect to receive approval or disapproval within the next week 10 business days. Written acceptance or disapproval will immediately be mailed to the below listed address.
我们可望在随后的10个工作日内获知方案是否通过。采纳或者否决的书面意见将会邮寄至以下地址。

We look forward to a mutually rewarding relationship with you.
期望与您建立互惠互利的关系。
Thank you for accepting our proposal. We look forward to a mutually rewarding relationship with you.
感谢您采纳我们的提案。期望与您建立互惠互利的关系。