1. The company is falling apart due to infighting.2. If we keep fighting within the company, we'll never be able to take down our competitors.3. An empire is brought down not by outsiders, but by people from within.
 Infighting people from within infighting 是很適合的字, 當然也可以白話翻譯.
1. 這家公司因為內鬨而越做越差.2. 如果我們一直有內鬨就遠無法打敗競爭對手.3. 一個王國不是被外人打敗, 而是被自己人瓦解.