美国国务院对香港旅游警示提升至二级，原因是香港出现暴乱

#HongKong Travel Advisory: Level 2 – Exercise increased caution due to civil unrest. Since June 2019, large demonstrations have taken place in Hong Kong with little warning and are likely to continue. Most are peaceful, but some have resulted in violence. https://t.co/vnqur6bDU2 pic.twitter.com/gSHMrwkWTa

— Travel – State Dept (@TravelGov) August 7, 2019