The government set out to destroy the organization root and branch.
政府着手完全彻底地摧毁这个组织。
《牛津词典》
2
The principal square root function is defined using the nonpositive real axis as a branch cut.
主平方根函数是使用非正实轴作为分支切割定义的。
3
An absolute pathname begins with the root directory and follows the tree branch by branch until the path to the desired directory or file is completed.