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protectant英英字典_protectant剑桥英语解释_protectant柯林斯英文解释_欧米惠必应词典
欧米惠必应词典

protectant

P 开头单词

柯林斯词典

    protectant /prəˈtɛktənt/

  • 1. N a chemical substance that affords protection, as against frost, rust, insects, etc 保护剂

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