为了把这里的问题看得更清楚，让我们看一种不同的生物系统，比如说，橡实。

To see the problem here more clearly, let's look at a different biological system, say, an acorn.

《柯林斯英汉双解大词典》

他说，他对澳大利亚本土鱼类的研究表明，鱼是一种聪明的生物，像其他动物一样知道如何躲避敌人和捕捉食物。

He says his studies of Australian native fish show fish were intelligent creatures that know how to avoid enemies and catch food like any other animal.

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白腹树袋熊，作为一种已知的生物，是一种生活在森林里的有袋类动物，大部分时间生活在地面上，它的颜色非常鲜艳。

The Dingiso, as the creature is also known, is a forest-dwelling marsupial with bold coloration that spends most of its time on the ground.

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Well, you might say surely there could be creatures that would want to live forever, that would enjoy an eternal existence.

你们也许会说一定存在某种生物,会希望永远活下去，会享受一种永恒的存在。

耶鲁公开课 - 死亡课程节选

It's a biological system that you've engineered from taking cells from one organism and cloning them and developing a whole other organism.

所谓生物系统的工程化,就是从一种生物体内中取出细胞并克隆,将它们培养成为另一个有机整体

耶鲁公开课 - 生物医学工程探索课程节选

Now the hope--the hope is that someday there will be biological measure of what people are eating.

现在的希望是,某一天会有一种生物学手段,可用于研究人们吃什么

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选