To protect the earth, we mustn't throw away waste carelessly.

为了保护地球，我们不能随意丢弃废物。

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This job is to protect the earth from germs on things brought back from other planets.

这份工作是为了保护地球免受从其他星球带回来的东西上的细菌侵害。

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Each day I will keep trying to change one thing that I do to protect the earth.

每一天，我都会努力改变我所做的一件事来保护地球。

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(SAYING) He says that we need to protect the earth because this land belongs to us as villagers and as Africans.

VOA: standard.2010.04.01

The whole purpose of protecting climate change is to protect the Earth as a whole.

FORBES

Forty-two years ago, a generation rallied together to protect the earth we would inherit.

WHITEHOUSE: Presidential Proclamation -- Earth Day

The magnetic field associated with these particles helps protect the Earth from cosmic rays by deflecting them from the planet.

ECONOMIST: Climate change: Bubbling up | The