ecological - environmental problem

• 生态问题

ecological - environmental problem的用法和样例：

例句

1. Forest entomologists have concentrated on ecological problems.
   森林昆虫学家所重视的是生态问题。
2. The increasingly worsened ecosystem problem has caused the mankind's thorough introspection.
   当今日益恶化的生态问题引发了人类对自身的深入思考。