tug of war
noun
1- a contest in which two teams pull at opposite ends of a rope until one drags the other over a central line拔河比赛。
1.1
- figurative a situation in which two evenly matched people or factions are striving to keep or obtain the same thing〈喻〉在势均力敌两者之间展开的争夺：
a tug of war between builders and environmentalists.
建造商与环境保护主义者之间的争夺。