fag away meaning in English

辛辛苦苦地做

He fagged away at this work for weeks .
这项工作他辛辛苦苦地干了好几个星期。
He has fagged away at french for some years and has mow mastered it
他苦学了几法语，现在已经掌握得很好了。
Mortally : after all , it s tough work fagging away at a language with no master but a lexicon
“累极了，那么孜孜不倦学一门语言，没有老师，只靠一部词典，毕竟是吃力的。 ”
While mary drew , diana pursued a course of encyclopaedic reading she had to my awe and amazement undertaken , and i fagged away at german , he pondered a mystic lore of his own : that of some eastern tongue , the acquisition of which he thought necessary to his plans
这时候玛丽绘画黛安娜继续她的百科全书阅读课程使我不胜惊讶和敬畏我苦读德文他则思索着自己神秘的学问，就是某种东方语言，他认为要实现自己的计划很需要把它掌握。