它属于凯尔特语系，与英格兰语、盖尔语、威尔士语和布列塔尼语关系密切。
It is one of the Celtic family of languages and is closely related to Scots gaelic , Welsh and breton .
他用她听不懂的布列塔尼语发了道命令。
He called out an order in the language of Brillang which she could not understand .
布列塔尼语