Compound sum
出国 Abroad[经] 复利本利和
🧩 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
She can't sit around and do nothing.
她总不能闲坐着无所事事呀。
Would you mind mailing this letter for me?
你介意寄我的这封信吗？
I'm all set.
我都准备好了。