branch的復數(shù)形式？

　　branch例句分享

　　I struck my head against the branch of a tree.

　　我的頭撞在了樹枝上。

　　Gynaecology is a branch of medicine.

　　婦科學是醫(yī)學的一個分科。

　　Follow the main road until it branches, and then turn to the right.

　　順著這條大路走，在路的分岔口向右拐。