1.
International means between or involving different countries.

e.g. ...an international agreement against exporting arms to that country.
禁止向該國出口武器的國際協(xié)定
e.g. ...Kuwait International Airport.
科威特國際機場

internationally
There are only two internationally recognised certificates in Teaching English as a Foreign Language...
“作為外語的英語教學”只有兩種國際上認可的證書。
I am one of the few young women who has made it as a writer financially and internationally.
我是為數(shù)不多的既獲得財富又享有國際知名度的年輕女作家之一。

2.
In sport, an international is a game that is played between teams representing two different countries.

e.g. ...the midweek international against England.
周三對抗英格蘭的國際比賽

3.
An international is a member of a country's sports team.

e.g. ...a former England international.
前英格蘭國手