Without the fight-flight reaction, man would never have survived the cave and the jungle.

人类作出争斗或逃避的反应使其在远古时代得以在洞穴或丛林中生存。

youdao

Without the fight-flight reaction, man would never have survived the cave and the jungle.

人类作出争斗或逃避的反应使其在远古时代得以在洞穴或丛林中生存。

youdao