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
There just wasn't enough time.
实在是没有足够的时间。
Early mistakes are the seeds of future trouble.
早期的错误可以酿成日后的麻烦。
Although being early may mean wasting a little time, this will be less than if you miss the train and have to wait an hour or more for the next one;
虽然早到可能意味着浪费一点时间，但这比误了火车等上一个多小时坐下班车浪费的时间要少，