练习散打时，练武者要做到象在实战中一样动作准确敏捷。
When "combat" is practiced the practitioners have to perform with dexterity and accuracy and in such a way as if they were in a real fight.
借助自然的力量，美国麻省理工大学的一组研究人员建造了一群会游泳的机器人鱼。 这种“机器人鱼”可以像真鱼一样动作“优雅地”钻进水里，但速度可能没那么快。
Borrowing from Mother Nature, a team of MIT researchers has built a school of swimming robo-fish that slip through the water just as gracefully as the real thing, if not quite as fast.
从她的动作可以看出，她和其他人一样优秀。
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