单词

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smirch

英 [smɜːtʃ] 美 [smɝtʃ]

vt. 弄脏
n. 污点

GRE

双语例句

1. 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.