We send you a small sum of money in acknowledgment of your valuable help.

我们寄上少量的钱，借此感谢您的鼎力相助。

youdao

A written acknowledgment that a specified article, sum of money, or shipment of merchandise has been received.

收到某件货物、钱或发货通知书的书面确认。

youdao

Do not assume that money is the acknowledgment.

别认为是钱惹的祸。

youdao

Kickett claimed she did not want money, only family acknowledgment.

NEWYORKER: The Miner��s Daughter

"Similarly, for other areas prone to shortages, I will put Hong Kong people first, " an official draft of his speech quoted him as saying, in apparent acknowledgment of tensions over an influx of visitors and money from the mainland.

BBC: Hong Kong leader CY Leung in housing pledge