CORE WORDS
COMPOUND WORDS
dwarf planet | {n} | (a type of celestial body) | exoplanet | {n} | (planet outside Earth's solar system) | gas giant | {n} | (large planet of gas) | inner planet | {n} | (planet of the Solar System with an orbit between the asteroid belt and sun) | interplanetary | {adj} | (existing or occurring between between planets) | minor planet | {n} | (celestial body) | outer planet | {n} | (planet of the Solar System with an orbit beyond the asteroid belt) | planet | {n} | (each of the seven major bodies which move relative to the fixed stars in the night sky) | planet | {n} | (rocky or gaseous spherical bodies orbiting the Sun) | planet | {n} | (similar body in orbit around a star) | planetarium | {n} | (museum which displays images of space) | planetary nebula | {n} | (nebulosity) | planetary science | {n} | (branch of astronomy) | planetary system | {n} | (a group of various non-stellar objects orbiting a star or star system) | planetoid | {n} | (any of several larger astral bodies) | planetology | {n} | (the study of planets) | Planet X | {prop} | (hypothetical planet) | protoplanet | {n} | (astronomical object) | protoplanetary | {adj} | (of or pertaining to a protoplanet) | terrestrial planet | {n} | (Any planet of the solar system or any exoplanet which is Earth-like)
5000 WORDS
PHRASES
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| The earth is a beautiful planet . | 地球是一个美丽的星球。
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The earth is one of the planets . | 地球是行星之一。
The earth is a small but beautiful planet . | 地球是一个虽小但美丽的星球。
地球是一个美丽的星球。
| 地球是行星之一。
| 地球是一个虽小但美丽的星球。
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