tributary

• 形容河流或溪流汇入更大的河流或湖泊的，即支流的。

Describes a river or stream that flows into a larger river or lake.

1. Flowing into a larger streamB2formal

   Describes a stream or river that flows into a larger river or lake.

   支流的

   • The Missouri River is a tributary stream of the Mississippi.
   • Several tributary rivers feed into the Amazon basin.
   • The map shows all the tributary creeks that join the main river.

   同义词affluentcontributory

2. Paying tributeC1formal

   Relating to the act of paying homage, respect, or a tax to a ruler or state.

   朝贡的

   • The tributary states were required to send gold to the empire.
   • In ancient times, many regions were tributary to Rome.
   • The king demanded tributary payments from the conquered lands.

   同义词dependentsubjectsubmissivesubordinatevassal

   反义词autonomousindependentsovereign

3. Contributing to a resultC1formal

   Tending to bring about or being partly responsible for a particular outcome.

   促成的

   • His efforts were tributary to the success of the project.
   • Several factors were tributary to the economic downturn.
   • Her research was tributary to the final discovery.

   同义词causativeconducivecontributingcontributoryinstrumental

   反义词counterproductiveobstructive

• 指流入更大河流或湖泊的河流或溪流，即支流。也泛指汇入更大事物的次要部分。

A noun referring to a river or stream that flows into a larger river or lake.

1. River branchB2formal

   A stream or river that flows into a larger river or lake.

   支流

   • The Missouri River is a major tributary of the Mississippi.
   • Many small tributaries feed into the Amazon River.
   • The map shows all the tributaries of the Danube.

   同义词affluentbranchbrookcreekfeederinfluentstream