2 sentences for 盛 (shèng — extensively)

1. 这种习俗在民间流传甚盛。

   zhè zhǒng xí​sú zài mín​jiān liú​chuán shèn shèng.

   This custom is very prevalent among the people.

   Source: Dong Chinese Dictionary

2. 他自幼习书，成名后书名极盛。

   tā zì​yòu xí shū, chéng​míng hòu shū​míng jí shèng.

   He has practiced calligraphy since childhood, and his reputation as a calligrapher became very great.

   Source: Dong Chinese Dictionary