Saros
[天]沙罗周期(计18年又11.5天, 为日蚀和月蚀关系的反复周期)
🗣️ 情景例句
Are you married or single?
你结婚了还是单身？
I spent 12 dollars.
我用了十二块钱。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，