literal meaning: specially established, acting alone
translated: independent, unique, unconventional
特
tè
special, particular
立
lì
establish
独行
dúxíng
to go alone, do alone
独
dú
alone
行
xíng
behavior, conduct
房东的猫 - 爱你就像爱生命
Landlord's Cat - Loving You Is Like Loving Life
行驶特立独行的路途
Xíngshǐ tèlì-dúxíng de lùtú
(I) decided to travel along (my) own unique path
In the verse, the singer observes that most people that quietly conform to the standards set by society are in fact actually unhappy. When she realizes this, the singer decides to break from the majority and follow a path of her own choosing. Though this lyric omits some of the grammatical structure that would be found in colloquial speech, the use of the idiom conveys the meaning that the singer is making her own decisions and is not influenced by the actions of those around her.