Liǎng / jiā / gōng / sī / zhèng / shì / chéng / wéi / zhàn / lüè / huǒ / bàn / gòng / tóng / kāi / fā / xīn / chǎn / pǐn

两家公司正式成为战略伙伴，共同开发新产品。

The two companies officially became strategic partners and jointly developed new products.