同心同德 unity and harmony
Explanation
同心同德指的是思想统一，目标一致，为同一目的而努力。形容大家团结一致，齐心协力。
Tongxin tongde refers to the unity of thought and the pursuit of the same goal. It describes the unity and cooperation of everyone.
Origin Story
商朝末年，暴君纣王统治残暴，朝中官员大多心怀不满，甚至暗中策划谋反。周武王在讨伐纣王的关键时刻，向他的军队发表了慷慨激昂的誓师演讲。他强调，只有将士们同心同德，团结一心，才能战胜强大的敌人。他号召大家为了共同的目标，为了光复华夏，为了天下黎民百姓的福祉，抛弃私心杂念，拧成一股绳，奋勇杀敌。周武王慷慨激昂的誓言点燃了将士们心中的激情，他们深受鼓舞，决心同心同德，誓死追随武王，最终推翻了商朝的残暴统治，建立了周朝。
At the end of the Shang Dynasty, the tyrannical King Zhou ruled with cruelty, and most of the officials in the court were dissatisfied and even secretly plotting rebellion. At a critical moment in the war against King Zhou, King Wu of Zhou delivered an impassioned speech to his army. He stressed that only with the unity and solidarity of his soldiers could they defeat the powerful enemy. He called on everyone to abandon selfish thoughts and work together for their common goal: the restoration of China and the welfare of the people. King Wu's impassioned words ignited the enthusiasm of his soldiers, who were deeply inspired to follow him to the death and overthrow the tyrannical rule of the Shang Dynasty and establish the Zhou Dynasty.
Usage
表示团结一致，齐心协力。通常用于形容团队合作，共同努力实现目标。
It is used to express unity and cooperation. It is usually used to describe teamwork and joint efforts to achieve a goal.
Examples
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他们两人同心同德，共同创业，终于取得了成功。
tāmen liǎng gèrén tóng xīn tóng dé,gòngtóng chuàngyè,zhōngyú qǔdéle chénggōng.
The two of them worked together in unity and harmony, and finally achieved success.
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公司上下同心同德，齐心协力，才能度过难关。
gōngsī shàngxià tóng xīn tóng dé,qí xīn xiélì,cái néng duguo nánguān
Only if everyone in the company is united and works hard together can we overcome the difficulties.