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沙滩清洁行动及保护教育、远足离开营地。
Environmental beach clean up, hike out of camp.
youdao
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援助听障者和糖尿病防治教育听力保护教育。
Aid deaf and hearing diabetes prevention education protected education.
youdao
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援助听障者和糖尿病防治教育听力保护教育。
Aid deaf and hearing diabetes prevention education protected education.
youdao