a pitched battle

• n. 难分难解的酣战

a pitched battle的用法和样例：

例句

1. Conservationists fought a pitched battle with developers over the future of the site.
   主张保护自然环境的人同地产开发公司就该地前途进行了针锋相对的论战。
2. The two merchants came to a pitched battle in the market place.
   这两个商人在市场上激烈地争执起来。
3. Each side committed its reserves and a pitched battle followed.
   双方都把后备部队投入了战斗，紧接着一场激战开始了。