?此之前

以前(before),在此之前 (before that) …

?大前天

... 建筑学院 ? Construction institute 大前天 ? Before that 永远的忠诚 ? Forever faithful ...

?在此之前

...语法来学习英语 ? I usually remember the word, the sentence, records the grammar to study English 在此之前 ? Before that 如果有一个女人陪你一起玩七雄争霸，那么你一定要娶她！

?其先

... 期限 allotted time; deadline; time limit 其先 previously; up to then; before that 奇羡 profit; surplus ...