How many standard drinks can you have before driving if you are under 20 years old?

如果你不足20周岁，你可以喝多少个标准量的酒精饮品并驾驶车辆？

阅读相关知识

One drink is not automatically safe or legal. Even small amounts of alcohol can impair driving.

不能按“喝一杯没关系”判断可否驾驶；即使少量酒精也可能影响驾驶能力。