铁板一块 a solid unit
Explanation
比喻结合紧密，不可分割的整体。形容事物结合得非常紧密，牢不可破。
It is used to describe a closely knit, inseparable whole. It describes how things are very tightly connected and indestructible.
Origin Story
话说古代，有一个国家面临外敌入侵。敌军来势汹汹，兵强马壮。这个国家的国王深知自己国力薄弱，如果贸然迎战，必败无疑。然而，他并没有因此灰心丧气。他采取了一系列措施，加强国防建设，团结各方力量。他下令修筑城墙，加固防线，并鼓励百姓积极参与到保卫家园的行动中。他还召集文武百官商议对策，在朝堂上，大臣们各抒己见，却始终难以达成一致意见。国王见状，并没有责备他们，而是耐心地解释利害关系，并以自身的决心与行动去感染他们。经过国王的努力，大臣们渐渐抛弃了个人利益，开始同心同德。整个国家，上下一心，从朝廷到民间，都形成了空前绝后的团结一致，如同铁板一块。最终，他们共同抵御了外敌的入侵，保卫了自己的家园。
It is said that in ancient times, a country faced an invasion from an external enemy. The enemy troops came with great force, and they were strong and well-equipped. The king of the country knew that his country was weak, and that a direct confrontation would certainly fail. However, he did not lose heart. He took a series of measures to strengthen national defense and unite all forces. He ordered the construction of city walls, the strengthening of defense lines, and encouraged the people to actively participate in the action of defending their homes. He also summoned civil and military officials to discuss countermeasures. In the court, the ministers expressed their opinions, but they could not reach a consensus. Seeing this, the king did not blame them, but patiently explained the stakes and infected them with his determination and actions. Through the king's efforts, the ministers gradually abandoned their personal interests and began to work together with one heart and one mind. The entire country, from top to bottom, formed an unprecedented unity, like a single plate. In the end, they jointly resisted the invasion of the enemy and defended their homes.
Usage
用作宾语、定语；比喻牢固结合，不可分割。
Used as an object and attribute; describes a solid connection that cannot be divided.
Examples
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他们的队伍组织严密，就像铁板一块。
ta men de dui wu zu zhi yan mi, jiu xiang tie ban yi kuai.
Their team is well-organized, like one person.
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面对强敌，他们团结一致，像铁板一块，共同战斗。
mian dui qiang di, ta men tuan jie yi zhi, xiang tie ban yi kuai, gong tong zhan dou
In the face of a strong enemy, they were united as one and fought together.