One-Tack Mind ( N( M0 F+ Q8 E: U4 L- [3 ~" w/ x, [/ k$ G+ Y3 y
Meaning: Tendency to think about only one subject ' m) b# ^+ h7 f' O' Z4 e Y, a( y7 L" h$ l0 OExample 7 T5 A( N% U; t6 }3 d* | 6 N( R3 A, \$ B; Q5 E% E7 @My son has a one -track mind these days. He thinks only about cars.