转学: to change schools, to transfer to another college...
前来: to come (formal), before, previously...
降: to surrender, to capitulate, to subdue, to tame...
赢: to beat, to win, to profit...
此前: before this, before then, previously...
保障: to ensure, to guarantee, to safeguard...
作: to do, to grow, to write or compose, to pretend, to regard as, to feel, writings or works...
礼拜天: Sunday...
正负: positive and negative...
分辨: to distinguish, to differentiate, to resolve...
