tributary

名词 tributary:

1. a branch that flows into the main stream
   同义词：feeder, confluent, affluent

形容词 tributary:

1. of a stream; flowing into a larger stream
2. paying tribute
3. tending to bring about; being partly responsible for
   同义词：conducive, contributing, contributive, contributory

1. A tributary colony.
   进贡的殖民地
2. There was one street apart from a tributary road near the end of the village.
   除了村子尽头的岔道外，还有一条大路。