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Eĉ guto malgranda, konstante frapante, traboras la monton granitan.
Even small drops striking constantly will bore through a granite mountain.
La najlo traboris la muron.
The nail went through the wall.
La sago traboris la dikan breton.
The arrow pierced the thick board.
Oni traboris al li la kranion.
He was trepanned.