Former proof
[法] 前证, 以往的证明
🧩 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”
🗣️ 情景例句
I take care of both to the best of my ability.
我尽我所能把两方面都照顾好。
It's an honor to be speaking to you today.
今天跟你们说话至感荣幸。
Because the equipment for adding sound to films had not yet been developed.
因为给电影配音的设备还没有研制出来。