
Hammer into
Strong Emphasis
The phrase suggests a forceful and persistent way of teaching.

Our coach hammered sportsmanship principles into us.
Emotional Frustration
Sometimes used to express annoyance towards someone's learning process.

I keep hammering the rules into him, but he forgets!
Repeated Effort
It implies repeated instruction until the lesson is learned.

The tutor had to hammer the formulas into the students.
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