1 sentence

1. 商是中国青铜文明发展的鼎盛时期。

   Shāng shì Zhōng​guó qīng​tóng wén​míng fā​zhǎn de dǐng​shèng shí​qī.

   The Shang Dynasty was the peak of China's bronze civilization.

   Source: Dong Chinese Dictionary