Shostak points out that while most high-school biology textbooks include as requirements for life the ability to metabolize and reproduce, it's easy to think of things that break these rules.
肖斯塔克指出，尽管中学生物课本中将新陈代谢和繁殖能力作为生命的必要条件，但是我们仍然很容易想起不符合这些规律的事物。
The producers of these tools are going to have to move quickly to bring the price points down and achieve the easy-of-use levels typical of a modern word processor.
这些工具的生产厂家现在必须迅速地把价格降下去，并达到当今字处理程序所拥有的那种典型的易用水平。
The producers of these tools are going to have to move quickly to bring the price points down and achieve the easy-of-use levels typical of a modern word processor.
这些工具的生产厂家现在必须迅速地把价格降下去，并达到当今字处理程序所拥有的那种典型的易用水平。
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