好词典

equator

UK //ɪˈkweɪ.tər//US //ɪˈkweɪ.t̬ɚ//

词源

源自晚期拉丁语 'aequator'(意为'使平等者'),来自拉丁语 'aequare'(使平等),14世纪进入英语。

noun

❶ 赤道,指地球表面距离南北两极相等的假想圆周线,将地球分为南北两个半球。

“The sun is directly overhead at the equator at noon.”

(正午时分太阳直射赤道正上方。)

“Countries near the equator have tropical climates.”

(赤道附近的国家属于热带气候。)

同义词:celestial equator, terrestrial equator, geographical equator

常见短语

celestial equator — 天球赤道,指地球赤道平面向外延伸与天球相交的大圆。

“The celestial equator is used as a reference in astronomy.”

(天球赤道在天文学中被用作参考基准。)