smudging

1.You've got a smudge on your cheek.

你脸上有一块污迹。

2.The police identified the murderess from a smudge of blood on the shirt.

警衫上的血迹辨出女凶手。

3.The police identified the murderer from a smudge of blood on the shirt.

警衫上的血迹辨出凶手。

4.Charcoal drawings smudge easily.

木炭画弄脏。

5.The signature was smudged.

签名被弄污了。