科研之友
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摘要
<正>一群小伙伴在海岛上发现了一个神秘的宝箱。一起加入他们的寻宝之旅吧!The children started down the pathwaywith Bill triumphantly(洋洋得意地) leadingthe way. Sue was close behind, carrying thesmall chest(箱子), deep in thought.As they came to a tall tree about halfway along the path, she noticed a symbolcarved on the lower outer bark. It was thesame as the one on the chest.
