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src=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" class=\"alignnone size-large wp-image-3130\" srcset=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964-1024x768.jpg 1024w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964-300x225.jpg 300w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964-768x576.jpg 768w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964-1536x1152.jpg 1536w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964-220x165.jpg 220w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7964.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" class=\"alignnone size-large wp-image-3129\" srcset=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961-1024x768.jpg 1024w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961-300x225.jpg 300w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961-768x576.jpg 768w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961-1536x1152.jpg 1536w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961-220x165.jpg 220w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7961.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7949-768x1024.jpg\" alt=\"\" width=\"768\" height=\"1024\" class=\"size-large wp-image-3128 aligncenter\" srcset=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7949-768x1024.jpg 768w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7949-225x300.jpg 225w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7949-1152x1536.jpg 1152w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7949.jpg 1440w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" 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src=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" class=\"alignnone size-large wp-image-3133\" srcset=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984-1024x768.jpg 1024w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984-300x225.jpg 300w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984-768x576.jpg 768w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984-1536x1152.jpg 1536w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984-220x165.jpg 220w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7984.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994-1024x768.jpg\" alt=\"\" width=\"1024\" height=\"768\" class=\"alignnone size-large wp-image-3135\" srcset=\"https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994-1024x768.jpg 1024w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994-300x225.jpg 300w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994-768x576.jpg 768w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994-1536x1152.jpg 1536w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994-220x165.jpg 220w, https:\/\/blog.city-niigata.ed.jp\/marusyo300\/wp-content\/uploads\/2026\/01\/IMGP7994.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/> <img loading=\"lazy\" decoding=\"async\" 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