COMB in ADJ
(加在表示国家的形容词前构成形容词)表示“中国与…的”，“中…的”
Sino- is added to adjectives indicating nationality to form adjectives which describe relations between China and another country.
例句
...Sino-Vietnamese friendship.
中越友谊
...Sino-Japanese trade and investment.
中日贸易和投资