Udc
abbr. 国际十进位分类（universal decimal classification）
🗣️ 情景例句
and they always will be.
将来也永远会如此。
Draw not your bow till your arrow is fixed.
事未齐备，切莫妄动。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。