Accurate can still be wrong
A perfectly translated listing can fail entirely. The sentences are grammatical, the terms are correct, and the whole thing still reads as foreign to an American shopper because the structure of persuasion is different.
Domestic Chinese ecommerce copy often leads with specification density and authority claims. U.S. copy leads with the buyer's situation and a concrete promise, then supports it.
What interpretation actually changes
Interpretation rewrites the order of information, changes the unit conventions, replaces unfamiliar reference points, and adjusts tone from formal to conversational. It also removes claims that are normal in one market and legally or culturally risky in another.
The result is not a looser translation. It is a different document built for a different reader from the same underlying truth about the product.
How to build the process
Keep a source-of-truth product brief in the original language covering what the product does, what it is made of, and where it genuinely outperforms alternatives. Then have a U.S. market voice write the American version from that brief rather than from the existing copy. Translate back only for internal approval.