英语语法分析

Shared intentionality evolved very early in the human lineage, he believes, and its probable purpose was for cooperation in gathering food.

他认为共享意向在人类世系中很早就得到发展了，而且它的目的很可能是在采集食物过程中相互合作。

They can trace their lineage back to the 18th century.

他们的家族可以直接追溯到18世纪。

《柯林斯英汉双解大词典》

The simplest explanation for this is that the axolotl lineage alone lost the ability to metamorphose, while others retained it.

对此最简单的解释是，只有蝾螈谱系失去了变形的能力，而其他族系则保留了这种能力。