Chuānliú-bùxī de chēliàng ràng chéngshì chōngmǎn shēngjī.
The endless stream of vehicles fills the city with vitality.
Tips
usage
不息 is a bound form typically used in formal written Chinese and in chengyu-style compounds like 川流不息 (endless stream) and 生生不息 (endlessly thriving). It rarely stands alone in speech.