1. 空白的；空的 Something that is blank has nothing on it.
e.g. We could put some of the pictures over on that blank wall over there... 我们可以把一些图画贴在那边的空白墙壁上。 e.g. He tore a blank page from his notebook. 他从他的笔记本上撕下一页空白纸。
2. 空白处；空格 A blank is a space which is left in a piece of writing or on a printed form for you to fill in particular information.
e.g. Put a word in each blank to complete the sentence. 每个空格填上一个单词，把句子补充完整。
3. 茫然的；漠然的；毫无表情的 If you look blank, your face shows no feeling, understanding, or interest.
e.g. Abbot looked blank. 'I don't quite follow, sir.'... 阿博特一脸茫然。“我没听明白，先生。” e.g. His daughter gave him a blank look. 他女儿漠然地看了他一眼。blanklyShe stared at him blankly.她面无表情地凝视着他。blanknessHis eyes have the blankness of someone half-asleep.他的眼睛透着茫然，一副半睡半醒的样子。
4. （头脑或记忆）一片空白 If your mind or memory is a blank, you cannot think of anything or remember anything.
e.g. I'm sorry, but my mind is a blank... 对不起，我脑子里一片空白。 e.g. I came round in hospital and did not know where I was. Everything was a complete blank. 我在医院里醒了过来，不知道自己身在何处。一切都是空白。
5. 空包弹 Blanks are gun cartridges which contain explosive but do not contain a bullet, so that they cause no harm when the gun is fired.
e.g. ...a starter pistol which only fires blanks. 只发射空包弹的发令枪
6. see also: point-blank
7. 一无所获；扑空 If you draw a blank when you are looking for someone or something, you do not succeed in finding them.
e.g. They drew a blank in their search for the driver. 他们四处寻找那个司机，但一无所获。
8. （脑子）突然一片空白 If your mind goes blank, you are suddenly unable to think of anything appropriate to say, for example in reply to a question.
e.g. My mind went totally blank. 我的脑子突然一片空白。