zero solution

例句：

1. 1. The problem has a zero solution, which means it's impossible to solve.
   这个问题没有解决方案，意味着无法解决。
2. 2. The math problem has a zero solution, so there is no correct answer.
   这个数学问题没有解决方案，所以没有正确答案。
3. 3. The company was facing a zero solution when the new manager took over.
   当新经理上任时，公司面临一个无解的问题。