blank  
 adjective uk/blæŋk/ us/blæŋk/
  (EMPTY)      
 B1 空白的,无字的;空着的
empty or clear, or containing no information or mark
  a blank sheet of paper 一张白纸 
 a blank computer screen 空白的电脑屏幕 
 Sign your name in the blank space at the bottom of the form. 在表格底部的空白处签名。 
 - More examples
 - Press the return key twice to leave a blank line.
 - If you give me a blank tape I'll record it for you.
 - Just as the film was starting, the screen went blank.
 - She left that page in her diary blank.
 - At the end of the two-hour exam, he handed in a blank sheet of paper.
 
  (NOT REACTING)      
 C2 茫然的;木然的
showing no understanding or no emotion in the expression on your face
  a blank stare/expression 茫然的凝视/木然的表情 
 blank incomprehension 茫然不解 
   (COMPLETE)      
 [ before noun ]完全的;彻底的 
complete and absolute
  a blank refusal/denial 彻底拒绝/否认 
 blank  
noun [ C ] uk/blæŋk/ us/blæŋk/
  (EMPTY SPACE)      
  (文件或表格的)空白处;空格
a space in a piece of writing or on a form, left empty for information to be added
  Fill in the blanks on this form. 将这份表格填好。 
 - More examples
 - The form has a blank for a witness signature.
 - Write your name in the blank.
 - Americans learn about 1492 and 1620 as kids and the rest of the story is a blank.
 - The last thing I remember is seeing people looking down at me. The rest is a blank.
 - Her past was a blank.
 
  (OBJECT)        
 坯件,原坯
something not yet drawn or finished, such as a key not yet cut into a finished shape
  (also blank cartridge)空弹 
a small tube containing explosive but no bullet, used in a gun in order to make a loud noise without causing harm
  The starting gun fires blanks. 发令枪放的是空弹。