good wine needs no bush 酒香不怕巷子深；酒好客自来；酒好无需挂幌子

【例句】
The product I've invented is so excellent that it needs no ad campaign, just as good wine needs no bush.
我发明的产品非常优秀，不需要广告宣传，酒香不怕巷子深。

We need to make high-quality products to bring in more good customers. Good wine needs no bush.
我们需要高质量的产品来吸引更多好的客服，酒香不怕巷子深。