héng xīng nián
sidereal year
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Middle English,
middle finger,
Middle High German,
Middle Low German,
middle man,
middle name,
middle school,
middle term,
Middle West,
middleaged,
相似单词
恒温箱,
恒温鱼缸,
恒向线,
恒星,
恒星的,
恒星年,
恒星日,
恒星状球体,
恒压,
恒压的,