在本世纪初，科学家和医生们就看到了该技术的潜力无穷——人们可以利用它制作活性组织，甚至是人类器官。
In the early 2000s, scientists and doctors saw the potential to use this technology to construct living tissue, maybe even human organs.
上世纪80年代，美国家庭储蓄9%的家庭收入。该比率到了90年代便落到5%左右，而进入本世纪初后，则几乎不到2%了。
In the 1980s American households salted away 9% of their income; this fell to around 5% in the 1990s and to barely 2% in the early years of this decade.
该比率到了90年代便落到5%左右，而进入本世纪初后，则几乎不到2%了。
This fell to around 5% in the 1990s and to barely 2% in the early years of this decade.
本世纪初，生活在慢性缺水的国度中的人口占到了8%（5亿），到2050年受波及的人口将扩大到45%（40亿）。
The proportion of people living in countries chronically short of water, which stood at 8% (500m) at the turn of the 21st century, is set to rise to 45% (4 billion) by 2050.
本世纪初，生活在慢性缺水的国度中的人口占到了8%（5亿），到2050年受波及的人口将扩大到45%（40亿）。
The proportion of people living in countries chronically short of water, which stood at 8% (500m) at the turn of the 21st century, is set to rise to 45% (4 billion) by 2050.
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