兵无常势 Military strategies are never constant
Explanation
兵无常势，指的是作战没有一成不变的模式，要根据具体情况灵活应变。这体现了孙子兵法中的重要思想，强调随机应变、因地制宜。
"Bing wu chang shi" means that there is no unchanging form in warfare; one must adapt flexibly to specific circumstances. This reflects an important thought in Sun Tzu's Art of War, emphasizing adaptability and adapting to the terrain.
Origin Story
春秋时期，吴国军队与楚国军队交战。吴王阖闾十分欣赏孙武的军事才能，任命他为将帅。孙武率领吴军与楚军激战，形势异常险峻。楚军人数众多，装备精良，占据有利地形，吴军处于劣势。孙武并没有沿用以往的战术，而是根据实际情况，巧妙地利用地形，避实击虚，出其不意，最终大获全胜。这场战争充分体现了“兵无常势”的智慧，也奠定了孙武在军事史上的地位。此后，“兵无常势”成为了中国军事思想中的重要组成部分，影响深远。
During the Spring and Autumn period, the Wu army clashed with the Chu army. King Helü of Wu greatly admired Sun Tzu's military talents and appointed him as a general. Sun Tzu led the Wu army in a fierce battle against the Chu army, the situation was extremely precarious. The Chu army was larger, well-equipped, and occupied advantageous terrain, while the Wu army was at a disadvantage. Sun Tzu did not use his usual tactics, but adapted to the situation, cleverly using the terrain, avoiding the enemy's strengths and attacking their weaknesses, ultimately achieving a decisive victory. This battle fully embodies the wisdom of "Bing wu chang shi", and established Sun Tzu's position in military history. Afterwards, "Bing wu chang shi" became an important part of Chinese military thought, exerting a far-reaching influence.
Usage
多用于军事、政治、商业等领域，形容策略要灵活多变，不可墨守成规。
Often used in the fields of military, politics, and business, to describe strategies that must be flexible and ever-changing, and that one should not stick to rigid rules.
Examples
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战场瞬息万变，兵无常势，唯有随机应变才能取胜。
zhan chang shun xi wan bian, bing wu chang shi, wei you sui ji ying bian cai neng qu sheng. shang chang ru zhan chang, bing wu chang shi, yao gen ju shi chang bian hua tiao zheng ce lue
The battlefield is ever-changing; military strategies are never constant; only by adapting to the situation can we win.
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商场如战场，兵无常势，要根据市场变化调整策略。
The market is like a battlefield; situations are not consistent; we must adjust strategies according to market changes.