Domain relational calculus
[计] 域关系演算
🧩 词语组成解析
relational
[ri'leʃənl]
adj. 亲属的，相关的，有关的;
calculus
['kælkjələs]
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
Maybe we could make it a surprise.
也许我们可以让它变成一场惊喜。
We have a wide selection of sweaters that will appeal to all ages, and in particular the teenager market which you specified.
我们有各种各样适合各个年龄层次的羊毛衫，特别是您专门提到的青少年市场。
When I was a boy, my grandfather told me how a German taxi driver, Franz Bussman,
当我是个孩子的时候，我祖父给我讲了一位德国出租汽车司机弗朗兹。