Speech Difficulties in Down Syndrome. Down syndrome (DS) is an incurable genetic disorder that has a profound impact upon a personâs physical, mental, and social development. Children with DS have anatomical and physiological differences in the mouth and throat region that affect feeding, swallowing, and oral motor skills.
1 A gross refers to a group of 144 items (a dozen dozen or a square dozen).  A great gross refers to a group of 1728 items (a dozen gross or a cubic dozen).
7.7 billion. Amount, in dollars, of combined worldwide grosses of the Harry Potter movies. 1, 2, 5, 4, 6, and 4. Number, respectively, of producers (1), screenwriters (2), editors (5), composers (4), cinematographers (6), and directors (4) who worked on the eight Harry Potter movies.