尊敬的润东客户：
受武汉疫情影响，以下内容摘自
USPS.COM官方首页：
Alert: USPS will be temporarily suspending the guarantee on Priority Mail Express International destined for China and Hong Kong, effective Monday, Feb. 10, 2020, due to widespread airline cancellations and restrictions into this area.
USPS目前去中国地区无法保证发货时效，原因是航班大量取消以及地域限制，此信息自2月10日起生效。