Informal proof
[计] 非形式证明
🧩 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”
🗣️ 情景例句
to have a family and grandchildren.
拥有一个家庭和孙子们。
He didn't say anything as to where he would go.
关于他的去处他什么也没说。
Why isn't Mrs. Lee's cat catching the mice?
李太太的猫为何不在抓这些老鼠呢？