一斉に

Meaning

1. adv
   simultaneously; all at once; in unison

Example sentences

• 予鈴だ。校門の辺りにいた生徒たちが一斉に足を速める。

  It's the class bell. The pupils that had been around the school gate quickened their steps as one.

• 彼らは一斉に立ち上がった。

  They stood up simultaneously.

• 彼らは一斉にスタートした。

  They started all at once.