Protothere

例句：

1. 1. The discovery of the first Prototheres on Earth has sparked a debate about the origins oflife.
   在地球上首次发现Prototheres的发现引发了关于生命起源的辩论。
2. 2. In the study of astrobiology, understanding the origins of Prototheres is crucial to understanding thepotential for extraterrestrial life.
   在天体生物学研究中，理解Prototheres的起源对于理解外星生命的潜力至关重要。
3. 3. The Prototheres were believed to be the first living organisms ever discovered on Earth.
   Prototheres被认为是地球上被发现的第一种活着的生物。