official receipts的用法和樣例：
例句
- All customer receipts must be chopped or signed by the authorized staff of the Company.
各項收費必須有由本公司授權人簽署及蓋章之正式收據，方為有效。 - We can accept the tax payments and issue you an official receipt for your records, what we call a Federal Depository receipt.
我們能夠接受納稅款項併發給您一張正式收據作為您的原始記錄，這樣的收據我們稱為聯邦存儲收據。
