circumnavigation
n.
1705, from circumnavigate + -ion.
〔蒋〕[nav船,-ation名词后缀] 环球航行
| 词汇 | circumnavigation | 
| 词根词缀 | Online Etymology Dictionary 词根李平武蒋争 circumnavigation n. 1705, from circumnavigate + -ion. 〔蒋〕[nav船,-ation名词后缀] 环球航行 | 
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