以下为句子列表：
英文: A little while later, however, Sandy noticed the girl was in the same spot, still by herself.
中文: 可是过了一会儿，珊看见那个小女孩还是一个人站在同一个地方。
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英文: About 5,000 years ago a sudden drying converted the Sahara from a green landscape dotted with lakes to the scorching, sandy desert it is today.
中文: 约5000年前，一次突发性的旱灾，将撒哈拉地区湖泊密布的翠绿景观，变成如今黄沙漫天的炙热荒漠。
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英文: According to the configuration and ecotope of the earths surface, the coverage of vegetation, occupation ratio of bare sandy land and the soil texture were selected as evaluation indexes by using the field investigation data.
中文: 利用外业调查数据，依据地表形态和生态状况的变化，确定了植被盖度、裸沙地占地百分比和土壤质地3项评价指标，并建立了基于遥感的科尔沁沙质荒漠化评价指标体系，其中裸沙地占地百分比用混合像元分解的方法获得。
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英文: After researches and analysis on status and trend of sandy desertification in Bashang area, the authors found that sandy desertification took a turn for the better in some areas, but it took a turn for the worse in overall situation.
中文: 摘要通过对坝上典型调查区沙漠化现状及其发展趋势的调查分析，发现虽然坝上地区生态环境局部好转，但是总体恶化的局面仍然没有彻底改变。
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英文: [Objective] The number of 3 rhizosphere microorganisms (bacteria, fungi, actinomycete) and 5 enzyme (catalase, protease, urease, phosphatase, invertase) activities were studied during the whole life of corn plant in sandy loam, loam and clay soil textures
中文: 摘要［目的］明确不同质地土壤（砂壤、中壤、重壤）玉米生育期间根际微生物（细菌、放线菌、真菌）数量与酶（脲酶、蛋白酶、磷酸酶、转化酶、过氧化氢酶）活性的变化。
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