fast food
US
UK fast food n: (junk food)
SC 快餐 kuài cān
We eat fast food occasionally when we don't have time to cook.
我们没时间做饭的时候，偶尔会吃快餐。
fast food, fast-food n as adj: (relating to fast food)
SC 快餐 kuài cān
Many fast-food items contain unhealthy amounts of sugar and fat.
许多速食含有不健康的糖分和脂肪。
fast-food restaurant, fast food restaurant n: (restaurant: rapid service)
SC 快餐店 kuài cān diàn
SC 小吃店 kuài cān diàn，xiǎo chī diàn
Fast-food restaurants tend to serve unhealthy food.