1·The origin of multicellular forms of life seems a relatively simple step compared to the origin of life itself.
与生命本身的起源相比，多细胞生命形态的起源似乎是相对简单的一步。
2·He said multicellular organisms likely evolved in many places, but the fossils haven't yet been found.
他说多细胞生命可能在多处地点演化，只是其化石尚未被发现而已。
3·Sure enough, cancer is found in almost all multicellular organisms, suggesting its origins stretch back hundreds of millions of years.
毫无疑问，几乎所有的多细胞生物中都发现了癌症，这暗示着癌症的起源可以追溯到数百万年前。
4·That makes up multicellular organisms .
这构成多细胞生物。
5·In its wake, the first multicellular animals arose.
在其之后，第一个多细胞动物出现。