Undis
[计]= UN Documentation Information System,联合国文献资料系统
🗣️ 情景例句
A table spoon is much bigger than a teaspoon.
汤匙要比茶匙大得多。
I wonder if it's a real diamond.
它可是地道的钻石呀。
Maybe it was useful for some people, but it wasn't for me.
它可能对一些人有用，但对我没用。