Elementary sum
[计] 基本合
🧩 词语组成解析
sum
[sʌm]
n. 总数;算术;金额;概略，要点;
vt.& vi. 总计;总结，概括;归纳;
🗣️ 情景例句
Rome wasn't built in a day.
罗马不是一天建成的。
There's a chance he won't be able to be home for Christmas.
他不能回家过圣诞节有偶然性。
It has always been a mystery to me who city dwellers, who appreciate all these things, obstinately pretend that they would prefer to live in the country.
城里人对这一切心里很明白，却偏要执拗地装出他们喜欢住在乡村的样子，这对我来说一直是个谜。