in a flash

副词 in a flash:

1. without any delay
   同义词：instantaneously, outright, instantly

1. I didn't get the number of the car that knocked you over. It was gone in a flash. All I know is that it's a big, brown car.
   我没有记下撞倒你的那辆汽车的车号，它一下子就开走了，我只知道那是一辆棕色的大轿车。
2. The answer came to her in a flash of inspiration.
   她突然来了一阵灵感，答案想出来了。
3. In a flash, the truth came to him.
   突然间，他明白了真相。
4. I'll be back in a flash.
   我马上就回来。