帮忙翻译一下环渤海经济圈摘要（要译成英文）

With the energy crisis, deterioration of the ecological environment of the emerging issues such as sustainable development has been become the focus of international and domestic research and hot topics. Bohai Rim Economic Circle currently facing the same environmental pollution, shortage of resources and other issues, in order to solve this problem, it is necessary to achieve the Bohai economic circle of sustainable development. Tianjin Bohai Sea economic circle as the two major municipalities, one of the Bohai economic circle in the centre, therefore, Tianjin's economic development directly related to the Bohai economic circle of sustainable development. This article combines the economic development of Tianjin, Tianjin Port economic development, described the Tianjin in the Bohai economic circle of economic development and sustainable development in an important position through the economic development of Tianjin and the Tianjin actively build an ecological city to protect t