- Mine environmental geo-technology problems are the hot and focus of environment governing in china.
摘要矿山环境岩土工程问题是我国环境治理的一个重点和热点问题。
- It is one of the hottest problems of the profession development of teachers across the world.
摘要教师专业发展问题是当今世界范围教育改革中的热点问题之一。
