本人在攻读硕士学位期间，主要从事研究的翻译：I was studying for a master's degree during the main field of study 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

I am studying for a master's degree in the period, mainly engaged in research

I was studying for a master's degree during the main field of study

Myself am studying assiduously master's degree period, mainly is engaged in the research

I am in studying for a master's degree, mainly engaged in the research

I was studying for a master's degree during the main field of study