Discussion：“Buzzed driving is drunk driving”？

来源: 于 2022-07-04 10:00:34 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

The billboard on the highway says “Buzzed driving is drunk driving”.
What does it mean？

Is it related with cellphone call while driving？

Or it just means no drunk driving？