formal receipt的用法和样例：
例句
- We now have the pleasure to enclose our formal receipt, which we trust you will find in order.
同函奉上正式收据一纸，请查收为荷。 - We can accept the tax payments and issue you an official receipt for your records, what we call a Federal Depository receipt.
我们能够接受纳税款项并发给您一张正式收据作为您的原始记录，这样的收据我们称为联邦存储收据。
