【中文版】

“回马枪”是一个中国成语，意思是在击败对手后，回过头来给对手以致命的一击。这个成语源于古代战争中的一种战术，当骑兵在击败对手后，会迅速掉头返回，用长枪刺向对手的后背，从而杀死对手。现在，“回马枪”一词已经演变成形容在击败对手后，突然回过头来再次攻击对手的意思。

在日常生活中，“回马枪”一词常常被用来形容一种表面上似乎已经放弃或者退却，但实际上是为了更好的反击而制造的假象。比如，在商业竞争中，一家公司可能会装作放弃竞争，但是在关键时刻却会突然出击，给对手一个“回马枪”，从而赢得市场份额或者击败对手。

“回马枪”的含义和用法非常灵活，可以根据具体语境和情况进行不同的解释和应用。这个成语在中国文化中有着广泛的影响力，是人们日常生活中不可或缺的一部分。

【英文版】

The term "hui ma qiang" is an idiom in Chinese, meaning to deliver a fatal blow to the opponent after defeating them. The origin of this idiom comes from a military tactic in ancient times, where cavalrymen would defeat their opponents and then quickly turn around to thrust their spears into the backs of their opponents, killing them. Nowadays, the term "hui ma qiang" has evolved to describe the act of delivering a surprise attack to an opponent after first appearing to be defeated.

In daily life, the term "hui ma qiang" is often used to describe a deceptive appearance of giving up or retreating, but actually it is a ploy to better counterattack. For example, in business competition, a company may pretend to give up the competition, but at the critical moment, they will suddenly strike back with a "hui ma qiang" move, winning market share or defeating their opponents.

The meaning and usage of "hui ma qiang" are very flexible and can be interpreted and applied differently depending on the specific context and situation. This idiom has a wide influence in Chinese culture and is an indispensable part of people's daily lives.