Step130. 5대양의 어원

#shorts#5대양#태평양#대서양#인도양#북극해#남극해 –––––––––––––––––––––––––––––––––––––––––––––––––– [Video Source Support] Youtube channel "freeticon" :    / freeticon   ––––––––––––––––––––––––––––––––––––––––––––––––––