Drakowen stood above the fallen Ardan , an evil smirch across his now malformed face.

德拉科文站在倒下的阿登之上，他难看的脸上显示出恶魔的污迹。

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.