成员国的官方语言并不会自动转为欧盟的官方语言（卢森堡语的例子就很著名），应一国要求，才会得到认可。
The official language of a member state doesn 't automatically become an official language of the EU ( as is notably the case with Luxembourgish ) . This recognition happens at the request of the state .
卢森堡语