Proof of performance
[经] 合同已履行的证明
🧩 词语组成解析
proof
[pruf]
n. 证明;校样;检验;（酒的）标准酒精度;
adj. 防…的;抗…的;能抵御;能防范;
vt. 给（织物）做防护处理，使防水（或防火等）;印…的校样;
vi. [印刷术] 校对;发酵;
prob, prov Prob, prov= test, 表示”测试,证明, 检验”
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
Don't you, Audrey?
喜欢吗， Audrey？
You have to be there half an hour before departure time.
你要在起飞前半小时到那里。
In his youth, his father and grandfather often told him stories about their family history.
年轻时，他的父亲和祖父常常同他说起他们的家史。