只是你一定要保管好收据。

But you must take care of your receipt.

youdao

请保管好这张收据。

Please keep this receipt.

youdao

这是货币兑换收据。请妥善保管。

Here is the currency exchange receipt. Be sure to keep it.

youdao

这是您的收据，请保管好。

Here is your receipt, please keep it carefully.

youdao

这是您的收据，请保管好。

Here is your receipt, please keep it carefully.

youdao