spring into action

Verb

To begin doing something or become active suddenly and very quickly.

Japanese Meaning

突然行動を開始する、急に動き出す / すぐに活動を始める、急変して活発になる

When the fire alarm rang, the firefighters had to spring into action.

火災報知器が鳴ったとき、消防士たちは即座に行動を起こさなければならなかった。

Sense（1）

To begin doing something or become active suddenly and very quickly.

springs into action

（ present singular third-person ）

springing into action

（ participle present ）

sprang into action

（ past ）

sprung into action

（ participle past ）