Level 6 · word 19,761 of 20,000

insoluble

/ˌɪnˈsɑːljəbəl/ American
  • adj. 不溶的, 无法解决的
Definition
  • adj. impossible to dissolve in a liquid, or impossible to solve
Example
Some problems are insoluble, no matter how hard we try to fix them.
有些问题无论我们多么努力都无法解决。