“他专心于研究工作，为国家的经济发展做出了巨大共献”用英语怎么翻译？

He devoted himself to the research work and also make a lot of devotion to the economy of our country.

His mind was totally preoccupied in researching work, and he did a great contribute to develop the national economy.

He studied work attentively,have a great contribution to national economy development

He is engrossed in research and has made great contribution to the economic development of the country.

这里用be engrossed in 褒义

还有个叫be infatuated with ...是贬义

He is infatuated with pride.

他被傲气冲昏了头。

He was infatuated with gambling.

他沉迷于赌博。