One-Tack Mind 6 R4 c* ^. F5 j% d" i6 B+ d9 o3 G( m1 S" d) ?
Meaning: Tendency to think about only one subject6 D _+ h3 m1 l. C1 a% V$ J% d( b
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Example& ]* `$ C1 V: t
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My son has a one -track mind these days. He thinks only about cars.