Undis
[计]= UN Documentation Information System,联合国文献资料系统
🗣️ 情景例句
My vacation was too short, I needed more time.
假期太短了，再有几天就好了。
No, I only wrote her one letter this year.
是的，今年我才给她写过一封信。
He reminds me of his brother.
他使我想起了他的弟弟。