中译英：随着我国国内生产总值的稳步增长，经济学家们对我们的经济发展前景都很乐观。

As the steady development of our country's GDP ,economists are optimism about the future of our country's economy.

With the stable increase of GDP,economists are optimistic about our national economic development.

with the stead development of Chinese GDP,economists are optimism about our develpoment future.

As the steady development of our country's total domestic products, economists hold an optimistic attitude to the future of our country's economy.