learn the hard way

Verb

 * 1) To learn by experiencing the consequences of making mistakes.
 * Anyone who tries to cycle will learn the hard way that grazes are painful.

Translations

 * Chinese:
 * Mandarin: 艱難地學到某事, 艰难地学到某事 (jiānnán de xuédào mǒushì), 通過艱難困苦而學到, 通过艰难困苦而学到 (tōngguò jiānnánkùnkǔ ér xuédào)
 * Finnish: oppia kantapään kautta
 * French:
 * German: auf die harte Tour lernen
 * Hungarian: saját kárán tanul
 * Polish: człowiek uczy się na błędach
 * Russian: узна́ть на горьком опыте, научи́ться на горьком опыте
 * Vietnamese: rút kinh nghiệm