This backpack is usually relatively simple structure, no plug-ins or plug-in for less, with the exception of a main bag, usually a 3-5 attached bag for carrying goods classification.

这种背包通常结构比较简单，不设外挂或较少设外挂，除一个主袋外，通常设3 - 5个附袋，便于分类装载物品。

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Any item with a plug or batteries which fits into an average sized plastic carrier bag can be put in the green box, which is picked up weekly.

BBC: Somerset