bag for life
noun [ C ] UK uk/ˌbæɡ fə ˈlaɪf/ us/ˌbæɡ fɚ ˈlaɪf/
（超市里购买的）可回收塑料购物袋，环保袋
a strong plastic shopping bag that you buy cheaply from a supermarket and use many times, usually one that the supermarket replaces when it is broken and then recycles