in the blink of an eye

Prepositional phrase

idiomatic

(idiomatic) immediately, instantaneously

Japanese Meaning

あっという間に / 瞬時に / 一瞬で

The cat chased the laser pointer and, in the blink of an eye, pounced on it.

猫はレーザーポインターを追いかけ、あっという間に飛びかかりました。

Sense（1）

(idiomatic) immediately, instantaneously

Picking the ball up in his own half, Januzaj threaded a 40-yard pass into the path of Rooney to slice Southampton open in the blink of an eye.