以下为句子列表：
英文: New research suggests that tobacco not only promotes cancer development, but also helps early cancer cells evade detection by the immune system, which might otherwise mop up harmful cells before they reproduce and spread.
中文: 新的研究表明，烟草不仅会促进癌症的发展，而且还能帮助早期的癌细胞逃避人的免疫系统的检测，而这种检测有可能在癌细胞繁殖和扩散之前就将其消灭。
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