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一提起长征,人们马上会想到中国工农红军爬雪山、过草地,转战二万五千里的壮举,可是,也许很多人并不知道还有另外一次长征,一次水下长征。在
Mentioning the Long March, people immediately think that the Red Army of Chinese workers and peasants climbed the snow-capped mountains and over the grassland and fought a 25,000-strong feat. However, many people may not know there is another long march and one underwater march. in