以下为句子列表：
英文: A: It helped immunize more than two billion children and strengthened the system that detects cases of polio.
中文: 答：帮助20多亿儿童接种疫苗，以及强化侦测小儿痲痹病例的系统。
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英文: Every project we carry out – every playground we refurbish, every well we help dig, every adult we teach to read, every child we immunize against polio — makes the world we all live in a bit better, a bit healthier, a bit happier.
中文: 我们推动的每一项计画，我们维修的每一个儿童游乐场、我们挖的每一口井、每一个我们教导识字的成人、每一个我们协助施打小儿痲痹疫苗的孩子，都让我们所居住的这个世界变得更好、更健康、更快乐。
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英文: Health ministers from the six countries said that they would intensify efforts to immunize 250 million children against polio by the end of this year.
中文: 非洲六国加强对儿童大脑灰质炎疫苗接种工作，2。5亿儿童从中得益。
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英文: Rotary members have donated their time and money to help immunize more than two billion children in 122 countries.
中文: 扶轮社员奉献时间和金钱，协助122国共逾20亿名儿童接种疫苗。
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英文: These neutralizing antibodies ( would immunize the body against HI oer a person's lifetime.
中文: 这些抑制性的抗体将终生保护机体免受艾滋病毒的攻击。
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