translation.en: There's over 10 million people, probably 20 million people, largely volunteers, who have been working over the last 20 years in what has now been called the largest internationally-coordinated operation in peacetime.
translation.zh: 投入人数超过一千万 甚至接近两千万 大多为志愿者 他们过去二十年来一直努力 贡献于现在被称为 和平年代最大的国际协同运作