百炼成钢
释义
铁经过多次冶炼才成了钢。比喻久经锻炼,变得非常坚强。
be tempered into steel / be put through the mill / be toughened and hardened into steel
例句 青年一代只有在学习和工作中经过长期的艰苦奋斗,才能百炼成钢,成为坚强的社会主义建设者。
Only through long and hard struggles in study and work can the young generation be tempered into steel-strong socialist constructors.
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