The new guidance will still call for masks in crowded setting like buses, planes, hospitals, prisons and homeless shelters.

新的指南仍然要求在公交、飞机、医院、监狱和流浪者收容所等拥挤场所佩戴口罩。

And " vehicle" means truck, bus, plane, car.

而“车辆”是指卡车、公共汽车、飞机、轿车。

People who have received the vaccine can stop wearing masks indoors as long as the area is not crowded like public spaces such as buses, planes, hospitals, prisons and homeless shelters.

接种疫苗的人可以停止在室内戴口罩，只要该区域不像公共汽车、飞机、医院、监狱和无家可归者收容所这样拥挤。