con·ti·nen·tal drift
noun/ˌkɒntɪnentl ˈdrɪft/
/ˌkɑːntɪnentl ˈdrɪft/
[uncountable] (geology)- the slow movement of the continents towards and away from each other during the history of the earth
see also plate tectonicsTopics Historyc2大陆漂移
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