Almost all amino acids that make up biological proteins, for instance, are left-handed, so a self-replicating biological molecule of right-handed chirality could be suggestive of an alien organism.
比如说，几乎所有构成生物蛋白的氨基酸都是左手性的，所以出现右手手性的自我复制生物分子可能意味着发现了外星生物体。
I need you to pick me up two good chickens the real plump ones. And make sure I got the feet and the beaks. I do not want none of that biological mess. Is that all right?
我想在那儿买两只真正的好鸡，有鸡爪和鸡嘴的那种，我可不要那些生化制品，可以吗？
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