礼仪: etiquette, ceremony...
生平: life (a person's whole life), in one's entire life...
狠: ruthless, fierce, ferocious, determined, to harden (one's heart), old variant of...
燃气: fuel gas (coal gas, natural gas, methane etc)...
晚餐: evening meal, dinner...
当地: local...
炸弹: bomb...
尺度: scale, yardstick...
用法: usage...
北京: Beijing, capital of People's Republic of China, also called Peking, PRC government...
