Arithmetic sum
[计] 算术和
🧩 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
We have to maintain communication to understand each other.
必须保持交流以求相互理解。
We can't recall how often he's written.
我们记不起来他每隔多久写一封信。
As quickly as they could, the men ran to th steps and up into the open, many of them with their clothes on fire.
工人们尽快朝楼梯跑去，爬上楼梯跑出舱外，其中好多人衣服已经着火了。