课: subject, course, to levy, tax, form of divination...
外婆: (coll.) mother's mother, maternal grandmother...
察觉: to sense, to perceive, to become aware of, to detect...
盛产: to produce in abundance, to be rich in...
伤亡: casualties, injuries and deaths...
赤字: (financial) deficit, red letter...
阀门: valve (mechanical)...
时尚: fashion, fad, fashionable...
环境: environment, circumstances, surroundings, ambient...
顺理成章: logical, only to be expected, rational and clearly structured (of text)...
