解开: to untie, to undo, to solve (a mystery)...
私事: personal matters...
成长: to mature, to grow, growth...
高中: to pass brilliantly (used in congratulatory fashion)...
屑: bits, fragments, crumbs, filings, trifling, trivial, to condescend to...
膜: membrane, film...
出难题: to raise a tough question...
男朋友: boyfriend...
访问: to visit, to call on, to interview...
礼堂: assembly hall, auditorium...
