this is not a drill

英語（米国） (en-US) 英語（イギリス） (en-GB)

表現

広義 ユーモラス文体 くだけた表現 頻度副詞

Used to distinguish emergency procedures from those which are just rehearsed. / (informal, often humorous, by extension) Used to make an announcement or draw attention to a fact.

このボタンはなに？

When the loudspeaker blared this is not a drill, employees dropped everything and followed the evacuation routes.

詳細

意味（1）

Used to distinguish emergency procedures from those which are just rehearsed.

意味（2）

(informal, often humorous, by extension) Used to make an announcement or draw attention to a fact.