Document of approval
[经] 批准文件
🧩 词语组成解析
document
['dɔkjumənt, 'dɔkjument]
n. （计算机）文档，证件;公文;
vt. 证明;记录;为…提供证明;
docu[=doc教]+ment名词后缀→用来告诉别人的东西→文件；证书
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];
🗣️ 情景例句
English is important for those who wish to do international trade.
英语对于那些想做国际贸易的人来说太重要了。
If you're not sure how to do is, ask me.
假如你拿不准怎样做，就来问我好了。
Shortly after this the famous H. M. S. Challenger expedition established the study of the sea-floor as a subject worthy of the most qualified physicists and geologists.
此后不久，英国著名的“挑战者”号舰艇对海底的那次考察，把对海床的研究确立为一个值得一流物理学家和地质学家从事的研究课题。