童叟无欺的英文：
[Literal Meaning]
child/old man/no/deception
We are equally honest with aged and child customers.

[解释]
童：未成年的人；叟：老人。不管幼童老叟，一律公平相待，绝不欺骗。

[Explanation]
to be very honest in running a business

[例子]
这家商店本着童叟无欺的宗旨，很快就吸引了很多顾客。

[Example]
The store insists the principle of cheating no one neither the old nor the young and attracts a lot of customers soon.

We are equally honest with the aged and child customers.
童叟无欺

He's a good person, cheating neither the old nor the young.
他是个好人，童叟无欺。

Paying great attention to our prestige and cheating neither the old nor the young is always the way we do our business.
我们做生意一贯注重信誉，童叟无欺。