planet
意味: A large celestial body that orbits a star; often refers to Earth
A planet is a large astronomical body that orbits a star and has cleared the neighbourhood around its orbit. Our solar system has eight planets. The word 'planet' is also commonly used to refer to Earth, particularly in discussions about environmental issues.
例文
- Mars is often called the red planet due to its colour. 火星因其颜色常被称为红色星球。Marte a menudo se llama el planeta rojo debido a su color.火星はその色から赤い惑星と呼ばれることが多い。화성은 그 색깔 때문에 붉은 행성이라고 불리는 경우가 많다.
- We must take action to protect our planet from climate change. 我们必须采取行动保护我们的星球免受气候变化的影响。Debemos tomar medidas para proteger nuestro planeta del cambio climático.私たちは気候変動から地球を守るために行動を起こさなければならない。우리는 기후 변화로부터 지구를 보호하기 위해 행동을 취해야 한다.
- Scientists have discovered several planets orbiting distant stars. 科学家们发现了几颗围绕遥远恒星运行的行星。Los científicos han descubierto varios planetas que orbitan estrellas distantes.科学者たちは遠い恒星を周回するいくつかの惑星を発見した。과학자들은 먼 항성을 공전하는 여러 행성을 발견했다.
発音
使い方ガイド
場面: general
トーン: neutral
起源と歴史
From Old French 'planete', from Latin 'planeta', from Greek 'planetes' meaning 'wanderer', from 'planasthai' (to wander). The ancient Greeks called planets 'wandering stars' because they moved against the fixed background of stars.
文化的背景
Era: Modern
Generation: All ages
Social background: Universal
ストーリーと豆知識
From Greek 'planetes' meaning 'wanderer', because ancient astronomers noticed that planets appeared to wander across the sky unlike fixed stars. In 2006, Pluto was controversially reclassified as a dwarf planet, reducing our solar system from nine to eight planets.
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