! B* g. H7 r P1 \& MMeaning: Tendency to think about only one subject 3 q% D3 D! D+ u* H: x$ l5 R- J4 q' @& I+ I& N. u, H% [
Example A2 `$ A* e! y7 m) L6 u. z; H8 R f, B) Y# u4 j$ t! L
My son has a one -track mind these days. He thinks only about cars.