单词：planet
n. any celestial body (other than comets or satellites) that revolves around a star
考试类型：[中考/高考/四级/六级/考研/托福/GRE]
planet的用法和样例：
例句
- The Earth is a planet.地球是一颗行星。
- Mars is the fourth planet in order from the sun.火星是太阳系的第四颗行星。
- They claimed to have discovered a new planet.他们宣称发现了一颗新的行星。
- It is the only planet that we know harbors life.它是我们所知唯一适合生物生存的行星。
常见句型
- The Earth is a planet.地球是一颗行星。
- Is there life on other planets?在其他行星上有生命吗?
词汇搭配
- major planets大行星
- secondary planets卫星
经典引文
There is more than one way of..being 'born under' any planet.
出自：L. MacNeice
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实用英语
我们今天学的词是：planet。Planet是行星。不过你听说了吗，太阳系中排行第九的行星冥王星Pluto被降级了。Astronomers' reclassification strips ninth planet of status in solar system. 国际天文学会对行星重新定
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