英语语法分析

Brown bears eat everything from caribou to berries.

棕熊则食用大到驯鹿小至浆果的所有食物。

Populations of lemmings, caribou and red knot (a shorebird) have all decreased.

旅鼠，驯鹿和红腹滨鹬(一种滨鸟)的种群数量都有所下降。

Every caribou knew when it was time to run and in which direction to go, even if it didn't know exactly why.

每只驯鹿都知道什么时候该跑以及往哪个方向跑，甚至它们并不知道它们为什么要那样。