国内外学者对学困生作了大量的研究的翻译：Scholars at home and abroad of poor students could be a lot of research 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

Domestic and foreign scholars, students with learning difficulties made a lot of research

Scholars at home and abroad of poor students could be a lot of research

The domestic and foreign scholars to study lived sleepily have done the massive research

Domestic and foreign scholars to study very poor students made a substantial amount of research

Scholars at home and abroad of poor students could be a lot of research