从地球上，我们只能看到月球的一面。

From Earth, we can only see one side of the moon.

youdao

这种流行可能会导致它们从地球上消失。

That popularity could lead to their disappearance from Earth.

youdao

几个世纪以来，他冒着北极的严寒、热带的酷暑和非人的贫困，从地球上攫取黄金。

For centuries he braved arctic cold, tropic heat and inhuman privations to wrest gold from the earth.

youdao

Because if it was a disease that was carried by both humans and squirrels, for example, then in order to get rid of it on the planet, you'd have to vaccinate not only all the people but all the squirrels, right?

因为假如人和松鼠都能携带,某种疾病的话,想要把这种疾病从地球上清除,不仅要给所有人接种疫苗,还要给所有松鼠接种疫苗

耶鲁公开课 - 生物医学工程探索课程节选