单词	isthmus
释义	isthmusisthmus /ˈɪsməs/ noun [countable] Etymology ETYMOLOGYisthmus Origin: 1500-1600 Latin Greek isthmos earth science, geography a narrow piece of land with water on both sides, that connects two larger areas of land:  the Isthmus of Panama
随便看	been beep beeper beer beer belly beery beeswax beet Beethoven, Ludwig van beetle befall befit befitting befittingly before beforehand befoul befriend befuddled beg beget beggar beggarly beggary begging

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