家政: housekeeping...
往事: past events, former happenings...
一流: top quality, front ranking...
瞬间: in an instant, in a flash...
出风头: to push oneself forward, to seek fame, to be in the limelight, same as...
行家: connoisseur, expert, veteran...
借口: to use as an excuse, on the pretext, excuse, pretext...
选修: (at a school) to take as an elective, an elective, elective (subject)...
细菌: bacterium, germ...
惨痛: bitter, painful, deeply distressed...
