noun
one country, two systems
Refers specifically to the Chinese policy allowing regions like Hong Kong and Macau to maintain their own economic and administrative systems under Chinese sovereignty.
香港は一国二制度のもとで高度な自治を認められている。
Hong Kong is granted a high degree of autonomy under 'one country, two systems'.
一
'One country, two systems' is a policy applied to China's special administrative regions.