保护地球的英文是Protect the earth。
重点词汇：地球 the earth；the globe；world；planet。
双语例句
1、臭氧层保护地球不受太阳紫外线的辐射。The ozone layer shields the earth from the sun's ultraviolet rays.
2、臭氧最广为人知的作用是保护地球免受太阳紫外线的伤害。Ozone is best known for its role in screening the Earth from harmful ultraviolet rays from the Sun.
3、这些工艺品你可以让孩子在节日时送给亲戚，教育他们怎样做可以有助于保护地球。在这个特别的日子，花点时间想想你能为地球母亲做点什么，你能做点什么吧。Make a bunch of crafts that your kids can give to family members for the holidays to teach them about what they can do to help protect the planet.
4、科学家们敦促世界自然保护联盟在地球濒危物种名单中把帝企鹅所处的位置提高。The scientists are pressing the International Union for Conservation of Nature to lift Emperors higher up on its list of Earth's endangered species.
5、但是1974年美国学者指出，CFC进入同温层后将使保护地球上生物不受紫外线伤害的臭氧层遭受破坏。But in 1974, American professor pointed out that CFC, once in the stratosphere, destroys ozonosphere, which protects the human race from the radiation of ultraviolet rays.
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