英语语法分析

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-billion-year-old Fossils May Be Earliest Known Multicellular life.

20亿年前的古老化石可能是地球上最早的多细胞生物。

Some species gather by the thousands to form multicellular bodies that can crawl.

一些种类的黏菌千上万个个体聚集起来，形成可以爬行的多细胞体。