合作关系正式建立了。

The partnership was officially ___established.

这家公司是行业内的老牌企业，信誉良好。

This company is an ___established business in the industry with a solid reputation.

这家公司经过十年发展，已成为行业内的知名企业。

After ten years of development, the company has become an ___established name in the industry.