noun ダウンロード 🔗共有 アルコール検知器 A device that measures alcohol in expired air so as to estimate the concentration of alcohol in a person's blood; used by traffic police in cases of suspected driving while under the influence of alcohol. Examples : "The police officer asked the driver to blow into the breathalyzer to check his alcohol level. " 警察官は運転手にアルコール検知器に息を吹き込み、アルコール濃度をチェックするように求めました。 device police technology vehicle drink traffic law AIとチャット語彙ゲーム読解練習