Domain relational calculus
[计] 域关系演算
🧩 词语组成解析
n. 范围,领域;领土,疆土;管辖范围;[计]域名;
domin =lord (主人)
n. [医]结石,石,积石,牙垢;[数]运算,演算,微积分(学);
ule,ulus 后缀;表”小,少”#词根助记:calc石头(古时候用石头来计算)##calc 石灰,石头#词根助记:calc石头(古时候用石头来计算)
🗣️ 情景例句
He's going up the ladder pretty quickly.
他真是平步青云。
Come and see me when you have time.
有空时请过来。
He was efficient in his work.
他工作效率高。
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