解不开地

例句：

1. 1. The problem is so complex that it's unsolvable with current technology.
   这个问题太复杂了，用现有的技术是无法解决的。
2. 2.The scientist found an insoluble substance in the sample.
   科学家在样本中发现了不可溶解的物质。
3. 3.The puzzle was so intricate that even the most experienced detective couldn't solve it.
   这个谜题太复杂了，即使是最有经验的侦探也无法解开。