# smirch ##### 词义 - #词性/v 弄脏；污蔑；诋毁 - #词性/n 污点；污斑；性格缺点 ##### 例句 - Study of reducing compound material 's drilling smirch - 减少复合材料钻孔污斑的研究 - The compound material of resin matrix may produce serious smirch phenomenon during the minute hole drilling . - 以树脂为基体的复合材料在微孔加工中会产生严重污斑现象。