wú yān
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  • adj.smokeless; smoke-free

    • wú yān rán liào

      无烟燃料

      smokeless fuel

    • wú yān jiā tíng

      无烟家庭

      non-smoking family

    • wú yān qū

      无烟

      a smokeless zone

    • wú yān gōng zuò huán jìng

      无烟工作环境

      smoke-free environment at work