本期内容：

Tokyo's world-famous Tsukiji fish market has held its final pre-dawn tuna auction before being relocated to a new site. The world's largest fish market, which has been in operation for 83 years, is being moved as part of the redevelopment for the 2020 Olympic Games. The famed tuna auctions are a popular tourist attraction in the Japanese capital.

pre-dawn: adj. 黎明前的
tuna: n. 金枪鱼
auction: n. 拍卖
relocate: vt. 使迁移；重新安置
famed: adj. 家喻户晓的
tourist attraction: 旅游胜地 (scenic spot)

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