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。

This is one of many reasons why intentionality is so difficult to prove.

这是很难断定故意与否的原因之一。

Overriding the distraction reflex and awakening to the present takes intentionality and practice.

克服分心的本能反应并觉醒到当下要有意向并练习。