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   _____    _____     _  __    ______    ______  
  / ___//  |  ___||  | |/ //  /_   _//  /_   _// 
  \___ \\  | ||__    | ' //    -| ||-   `-| |,-  
  /    //  | ||__    | . \\    _| ||_     | ||   
 /____//   |_____||  |_|\_\\  /_____//    |_||   
`-----`    `-----`   `-` --`  `-----`     `-`'

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發送短信 : The Different Navigation Methods in Pacific and Indian Ocean before the Age of Discovery