branch of a network

例句：

1. 1. The tree has many branches reaching towards the sky.
   这棵树有很多枝条伸向天空。
2. 2.The branch of science that studies the universe is called astronomy.
   研究宇宙的科学分支被称为天文学。
3. 3.The branch of the forest is home to many species of birds and animals.
   森林的分支是许多鸟类和动物的家园。