However, for the problem of environment pollution and energy shortage, there are still existing some problems to be solved.
但在诸多方面仍存在着很多难题亟待解决，以更有效地缓解当今环境污染和资源匮乏问题。
Currently, some problems still existing in the diagnosis and treatment of BDC: (1) Imaging techniques lacked standard guidance notions.
当前，胆管癌的诊治尚存在不少问题：(1)影像学检查技术的应用缺乏规范性指导意见。
Most of those changes are positive, but there are still some problems existing in the farmers' thoughts and ideas.
当前， 农民思想舆论主流是积极健康的，但仍然存在许多问题。
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