英语翻译通知我公司决定于2008年10月21日开始对楼宇外窗依次进行一次全面清洗.清洗时间：8：30-18：00特别提示

Informs Our company to decide that starts in October 21,2008 to the building outside the window to carry on a comprehensive clean in turn。scavenging period:8:30-18:00 prompts specially:1,clean period please turn off the window。2,outside the window clean is the work high above the ground,asks the pedestrian to pay attention detours。above project bringing about inconvenient,asks respectfully forgiveness。