circumnavigate的现在完成时怎么写？

vt.环航...

circumnavigate的音标：circumnavigate的英式发音音标为：[ˌsɜ:kəm'nævɪgeɪt]circumnavigate的美式发音音标为：[ˌsɜrkəm'nævɪgeɪt]...

For this year at least, our race to circumnavigate the globe in less than 80 days is over.至少今年，我们80天内环游地球一周的比赛已经结束了。He plans to circumnavigate the world in a helium balloon.他计画搭乘氦气球环绕世界一周.Request circumnavigation ( to ci...

circumnavigate的第三人称单数（三单）为：circumnavigates...

circumnavigate的现在进行时为：circumnavigating...

circumnavigate的一般过去时为：circumnavigated...