急！英语翻译以下文字：

Strategic management is a overall plan for the existence and development of the enterprises when it confronts with the intense diversification and severe challenge of the inside and outside enterprise environment.

The strategy management is a general plan of enterprises which pursue survival and development confronting the interior and exterior environment full of fierce change and competition.

strategic management is an overall plan when enterprises faces inside and outside environment with intense changes and severe challenges, where enterprises can survive and develop.