常見例句雙語(yǔ)例句But as the environment became drier around two million years ago, they began to forage in more-open grasslands—a problem for brains, which are notoriously vulnerable to heat.但200萬(wàn)年前,隨著環(huán)境變得更加干燥,他們開始在更開闊的草地上尋找食物——這對(duì)大腦是一大考驗(yàn)。 眾所周知,大腦對(duì)熱很敏感。 返回 forage drier