Undis
[计]= UN Documentation Information System,联合国文献资料系统
🗣️ 情景例句
Nice to meet you, Dean Rafer.
很高兴见到你， Rafer主任。
He is feeling the surface.
他在触摸着表面。
Often the little words have meanings of their own.
这些小词常常都有自己本身的意思。