Sum-of-the-years'-digits method
[经] 年限总额法
🧩 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;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
the
[ðə]
art. 指已提到的人（物）;指说话人与听者已知的人（物）;用于独一无二的事物前;与形容词最高级和序数词连用;
n. 数字；手指；足趾（digit的复数）
🗣️ 情景例句
We usually ship the goods by regular liners.
我们一般是定期班轮装运货物。
Where passion is high there reason is low.
感情高涨处，理智就低落。
There was no doubt that we were unwelcome visitors.
毫无疑问，我们的来访是不受欢迎的。