来自一百多个国家的政府首脑明天将聚集在日内瓦。
Heads of government from more than 100 countries gather in Geneva tomorrow.
这和你的人体相比较，人体每秒发出一百焦耳，每秒10 0瓦。
Compare that with your body, which generates a hundred joules per second every second 100 watts.
尼斯瓦德教授说，在7月20日这一天，“地球处于运行轨道上一百年来最薄弱的位置上”。
Niesward claims that on this day "Earth occupies one of the most fragile positions in its orbits for the last 100 years."
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