1
- （亦作Earth）the planet on which we live; the world地球; 世界：
the diversity of life on earth.
地球上生命的多样性。
1.1
- the surface of the world as distinct from the sky or the sea陆地; 地面：
it plummeted back to earth at 60 mph.
它以每小时60英里的速度直线下降并返回地面。
1.2
- the present abode of humankind, as distinct from heaven or hell尘世, 人间（与天堂或地狱相对）：
God's will be done on earth as it is in heaven.
愿上帝的旨意实现在地上, 如同实现在天上（祈祷用语）
1.3
the earth
chiefly Brit. used to signify a very large amount of something〈主英〉（某物的）大量; 巨额：it doesn't have to cost the earth to look good.
要漂亮不一定要花大钱。
The earth is the third planet from the sun in the solar system, orbiting between Venus and Mars at an average distance of 149.6 million km from the sun, and has one natural satellite, the moon. It has an equatorial diameter of 12,756km, an average density 5.5 times that of water, and is believed to have formed about 4,600 million years ago. The earth, which is three-quarters covered by oceans and has a dense atmosphere of nitrogen and oxygen, is the only planet known to support life.
2
- mass noun the substance of the land surface; soil土, 泥, 泥土; 土壤：
a layer of earth.
一层土。
2.1
- one of the four elements in ancient and medieval philosophy and in astrology (considered essential to the nature of the signs Taurus, Virgo, and Capricorn)土（古代、中古时代哲学及占星学中的四要素之一）：
as modifier an earth sign.土宫。
2.2
- count noun a stable, dense, non-volatile inorganic substance found in the ground不易挥发的稳定高密度无机物质。
2.3
- poetic/literary the substance of the human body〈诗/文〉人体, 躯壳。
3
- mass noun Brit. electrical connection to the ground, regarded as having zero electrical potential〈英〉接地：
ensure metal fittings are electrically bonded to earth
确保把金属电器装置接上地线
as modifier an earth wire.一根地线。
4
- the underground lair or habitation of a badger or fox獾（或狐）穴。
with obj.
1
- （常作be earthed）Brit. connect (an electrical device) with the ground〈英〉把（电器）接地：
the front metal panels must be soundly earthed.
仪表的金属面板必须妥善接地。
2
- Hunting drive (a fox) to its underground lair【猎】把（狐狸）追赶入洞穴。
2.1
- no obj.(of a fox) run to its underground lair（狐狸）躲进地洞。
3
earth something up
cover the root and lower stem of a plant with heaped-up earth用土掩盖（植物根部）。
短语
bring（或come）back (down) to eart
- h return or cause to return to reality after a period of daydreaming or excitement（幻想或兴奋之后）（使）回到现实中来。
the earth moved（或did the earth move for you?）
- humorous one had (or did you have?) an orgasm〈幽默〉达到了性高潮（或达到性高潮了吗？）
go to earth
1
- (of a hunted animal) hide in an underground burrow（猎物）逃入地洞。
1.1
- figurative go into hiding〈喻〉躲藏起来：
he'd gone to earth after that meeting.
那次见面后他便躲了起来。
like nothing on earth
- informal very strange〈非正式〉非常奇怪的：
they looked like nothing on earth.
他们显得非常奇怪。
on earth
- used for emphasis［表示强调］究竟, 到底：
who on earth would venture out in weather like this?
究竟有谁会在这样的天气冒险出行？
词源
Old English eorthe, of Germanic origin; related to Dutch aarde and German Erde.