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来源:雅诚德英语网
Groups of about a dozen students each, led by an experienced guide, will go on ten-day camping trips to the mountains to study the plants and animals that grow and live there.
每一组大约十来名学生,由一位经验丰富的导游带领,将进行为期十天的登山露营,以研究在那里生长和生活的动植物。