roll out v. 推广，或实行
pilot v. 试行
n. 飞行员
bags for life
可重复使用的环保购物袋
How many times a year do the environment groups monitor plastic usage by supermarkets?
Greenpeace and another campaign group, The Environmental Investigation Agency, monitor plastic usage by the supermarkets on an annual basis - so once a year.
What is one of the reasons why the use of plastic by supermarkets is rising?
One suggested reason is the use of ‘bags for life‘ has risen by 30% since last year.
More 'long-life' plastic bags being used
原文：https://www.cnblogs.com/shencangzaiyunduan/p/12203537.html