Warning: file_put_contents(): Only 0 of 7338 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 choking factor例句_choking factor英汉例句_choking factor双解例句_开心英文字典_柠咚词
He said that without intervention, PM2.5, a major cause of choking smog, would replace smoking tobacco as the top risk factor for lung cancer. 他表示，如果不采取任何措施的话，造成令人窒息的浓雾的主要因素之一——PM2.5将会取代吸烟，成为诱发肺癌的首要因素。