supercontinent
🇺🇸
/ˈsuːpərkɑːntɪnənt/
🇬🇧
/ˈsuːpəkɒntɪnənt/
A supercontinent is a huge landmass made up of multiple continents that were joined together in the past.
Scientists believe that there have been several supercontinents throughout Earth's history, such as Pangaea.
科學家們相信,在地球歷史上曾出現過幾個超大陸,例如盤古大陸。