词典释义：
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Every living thing on Earth is made of cells, from the smallest one-celled bacteria to the giant blue whale to you.
地球上所有的生命都是由细胞组成的，从最小的单细胞细菌，到巨大的蓝鲸，到你。
《TED-Ed》《TED教育》
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The process of every living thing on this planet evolving over millions of years from single-celled organisms, is too easy?
这个星球上的一切生物，经过数千万年从单细胞微生物进化而成，而你说太简单？
《Friends Season 2》《老友记 第二季》
双语例句
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He reasoned that some single-celled creatures are known to enter a hibernation-like state and survive for years with no air or food.
他推断，已知的一些单细胞生物进入类似冬眠的状态，在没有空气和食物的情况下存活数年。
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My boss is a single-celled organism.
我的老板是一位单细胞生物。
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Malaria is caused by a one-celled parasite called a Plasmodium.
疟疾是由称为疟原虫的一种单细胞寄生虫造成的。
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Nonetheless, there are indications that single-celled organisms can learn.
尽管如此，仍有迹象表明单细胞有机体可以学习。
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Single-celled organisms emerged from the primordial soup about 3.4 billion years ago.
单细胞生物大约出现于34亿年前的“原始汤”（primordial soup）。