名词
中文翻译:Unknown
同义词:
['Mars', 'Red Planet']
例句:
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1. The R star is the closestplanet to Earth.
火星是离地球最近的行星。
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2. Mars is known for its reddish-brown surface.
火星以其红色或棕色的表面而闻名。
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3. TheR star has been asubject of scientific study for centuries.
火星一直是科学研究数百年的主题。