One-Tack Mind/ O$ ^+ a3 X! g! n* y; {) F& F( n
+ p- y& [; M& n
Meaning: Tendency to think about only one subject : R7 }, x4 x/ N: k 3 g" Z/ Q1 e- RExample 5 a5 P2 y1 S& S/ I8 s1 O& j6 |( \! r+ N& u
My son has a one -track mind these days. He thinks only about cars.