Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/1fa36d07496d8f52edfd2ec728b4e3fd.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 pollution-free是什么意思，pollution-free的翻译，pollution-free音标、读音、用法和例句_甲百匯小鸡词典
Respirators should only be removed when the wearer is in an area that is considered free of airborne hazards, including confirmed or suspected influenza patients. 呼吸防護口罩衹能在無汙染的環境中，包括無確診或疑似流感病人的環境中摘除。