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1·Her involvement in the fraud has left a serious blot on her character.

她卷入了这次欺诈案，在她的品格上留下了一个很大的污点。《牛津词典》

2·Blot stain with vodka then launders in your regular wash.

在污渍上抹点伏特加，然后按正常程序清洗即可。

3·That foolish deed of his will remain a blot on his escutcheon.

他的那种愚蠢行为将永远是他名誉上的污点。《新英汉大辞典》

4·They are truly indomitable. But what a blot there is on history.

他们是真的毫不气馁。但这是历史上的一个污点。

5·It was a blot on an arrangement in which every cent was supposed to be monitored.

在该事务中这是一个污点，因为原本每一分钱都应处于监督之下。

6·He tried to blot out the image of Helen's sad face.

他尽量不去想海伦的那张忧伤的脸。《牛津词典》

7·Are you saying that she's trying to blot out all memory of the incident?

你是说她想抹掉对那次事件的一切记忆吗？《柯林斯英汉双解大词典》

8·Now, please forgive their sin but if not, then blot me out of the book you have written.

现在求你赦免他们的罪，不然，求你从你所写的册上把我的名字抹去。

9·I wanted to blot it all out.

我不想去想这些事情。

10·He drank to blot out his nightmares.

他用酗酒来忘却噩梦。

(1)blot out完全清除（思想、记忆等）；遮盖

(1)western blot蛋白质印迹