unilaterally connected graph

• 单向连通图

unilaterally connected graph的用法和样例：

例句

1. A tree is a connected graph with no cycles.
   一个树是一个没有圈的连通图。
2. The topological sorting algorithm works on unconnected graphs as well as connected graphs.
   拓扑排序算法既可以用于连通图，也可以用于非连通图。