Coifed
v. 盖以头巾, 戴紧帽( coif的过去式和过去分词 )
🗣️ 情景例句
OK.
好的。
Math is beyond me.
我对数学无能为力。
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。