Undis
[计]= UN Documentation Information System,联合国文献资料系统
🗣️ 情景例句
Here.
这里 。
Great men have great faults.
伟人也会铸大错。
One day, the man downstairs went to talk to the man. He went upstairs and knocked the door.
一天，楼下人去找楼上人谈谈。 他上楼敲门。