non-productive sectors是什么意思 non-productive sectors在线中文翻译

non-productive sectors是什么意思，non-productive sectors在线翻译，non-productive sectors中文意思，non-productive sectors的中文翻译，non-productive sectors发音，non-productive sectors例句，non-productive sectors词组短语，non-productive sectors怎么翻译，单词non-productive sectors的意思