並前往https://books.google.com.tw/books?id=JffcAgAAQBAJ&pg=PA47&lpg=PA47&dq=g20&source=bl&ots=omHBm1-HV9&sig=ACfU3U1vE1DgIMvbDdSFPnCkov-FoQ_VFA&hl=zh-TW&sa=X&ved=2ahUKEwiayOHZrsf9AhXXR_EDHcKrAtAQ6AF6BQjTAhAD