Sum component
[计] 和数分量
🧩 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
If the owners don't claim the dog in forty-eight hours,
如果狗的主人在四十八小时内不认领，
I worked at the store yesterday.
我昨天在商店工作。
Who do you think you're talking to?
你以为你在跟谁说话？