Reduce background noise and echoes through the use of room dividers, bookshelves, acoustic tiles, carpets, wall hangings, and bulletin boards (bare walls and floors have a tendency to echo sounds more).
(bare walls and floors; have; a tendency to echo sounds more) Context(bare walls and floors have,List([143, 169))):(a tendency to echo; sounds; more)
bare walls and floors have,List([143, 169))
bare walls and floors a tendency to echo
have sounds
a tendency to echo sounds more
more