Please acknowledge receipt of this email by replying before the end of the day.

請在今天下班前回覆，確認您已收到這封電子郵件。

The supplier acknowledged our purchase order and promised delivery within five business days.

供應商已確認收到我們的訂購單，並承諾在五個工作天內交貨。

Our customer service team acknowledges every complaint within 24 hours of receiving it.

我們的客服團隊會在收到每一件客訴後的24小時內確認收到。