Nếu bạn làm việc gì as quick as a flash, nghĩa là bạn làm việc đó nhanh như chớp, nhanh như cắt.

Ví dụ:

• John knew the answer so he put his hand up as quick as a flash.
• The customers are complaining. We need to get more food on the shelves as quick as a flash.
• That new train is so fast. We were in Paris as quick as a flash.