“十二宫”是上世纪60年代末到70年代初让加州北部人人谈之色变的连环杀手，而且至今逍遥法外，这成为拍摄这一题材严肃影片的挑战。
The challenge of making a serious film about the Zodiac, a serial killer who terrorised northern California in the late 1960s and early 1970s, is that he was never caught.
根据预测，这样的严寒天气至少还会再持续一个礼拜，因此这个冬天有可能成为新世纪最大的野生动物杀手。
With the icy weather predicted to last at least another week, this winter could be the single greatest wildlife killer of the new millennium.
上世纪80年代，公共健康官员和学者将吸烟和与吸烟相关的疾病认定为国家头号杀手和推高医疗费用的首要原因。
Public health officials and academics identified cigarette smoking and related disease as the nation's number one killer and foremost driver of health costs in the 1980s.
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