Undigraph
无向图
🗣️ 情景例句
The bad news is, you won't be able to adopt the dog.
坏消息是你不能收养那只狗了。
A watched pot(pan) is long in boiling.
心急水不沸；盼得越切，来得越迟。
Do you know what they are?
你知道他们是干什么的吗？