难怪: (it's) no wonder (that...), (it's) not surprising (that)...
期中: interim, midterm...
榜样: example, model...
治学: scholarship, high-level study, to do scholarly research, to pursue a high level of study...
此后: after this, afterwards, hereafter...
叠: to fold, to fold over in layers, to furl, to layer, to pile up, to repeat, to duplicate...
人间: the human world, the earth...
见效: to have the desired effect...
闹钟: alarm clock...
带头人: leader...