1 sentence

1. 那个古老的文明最终沉沦在历史的长河中。

   nà gè gǔ​lǎo de wén​míng zuì​zhōng chén​lún zài lì​shǐ de cháng​hé zhōng.

   That ancient civilization eventually perished in the long river of history.

   Source: Dong Chinese Dictionary