Relationship algebra
[计] 关系代数
🧩 词语组成解析
algebra
['ældʒɪbrə]
n. 代数学，代数;
🗣️ 情景例句
What does that mean when he goes,
他发出的声音代表什么意思
A plant may produce new flowers; man is young but once.
花有重开日，人无再少年。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.
是的，我看见了。他们怎么能这样排放废水呢？海水的颜色多么可怕呀！看来我们班同学根本不能在这里游泳。