问题描述：
Protect environment can promote the development of economy.有没有语法错误
Because economic development can avoid the deterioration of the natural environment.
这个有没有语法错误
Because developing countries need to do first is economic development.
那这个呢?
Because economic development can avoid the deterioration of the natural environment.
这个有没有语法错误
Because developing countries need to do first is economic development.
那这个呢?
问题解答：
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