substantial issue

• 实质性问题

substantial issue的用法和样例：

例句

1. Indeed, organised crime is the dark heart of this European dystopia, with the report describing the already substantial problem as the continent's largest concern.
   实际上有组织犯罪是欧洲陷入地狱般处境的黑暗之心，报告把业已形成的实质性问题描述为欧洲大陆最大的担忧。