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perihelion

US 
UK [ˌperɪ'hiːlɪən]
  • n.【宇,天】(行星或彗星运行轨道最接近太阳的)近日点;最高点
  • Web经过近日点;进日点;称为近日点
Plural Form:perihelia  
n.
1.
【宇,天】(行星或彗星运行轨道最接近太阳的)近日点;最高点,极点

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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