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
I don't have time to be exhausted.
我没有时间去精疲力尽。
How did he get away with cheating?
他是如何考试做弊而未被发现？
You might have left it in the shop.
可能你把它落在店里了。