Undigraph
无向图
🗣️ 情景例句
Which subject were you best interested in?
你对哪一科最有兴趣？
Thanks very much. It was a great party!
非常感谢。这次聚会好极了。
I have just heard from my sister, Mary.
我刚收到我妹妹玛丽的一封信。