Primecost sum
[经] 预定款
🧩 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
Sounds great.
听起来不错。
That was clever the way you worked out your problem.
那是解决你的问题的好办法。
He has surely set up a record for the thousands of children who dream of evading school.
他无疑为成千上万梦想逃避上学的孩子们创造了一项纪录。