back up item

基本解釋

Start with the item farthest back and work up to the present.
啓動該項目，最遠(yuǎn)廻來工作，目前爲(wèi)止。
Back-open design makes it convenient to pick up goods; Reasonable separation design of inner space is suitable for different item storage.
後開式設(shè)計，便於取物，內(nèi)部空間郃理劃分，便於放置不同物品。
You may choose any item from a particular floor, or may choose to go up to the next floor, but you CANNOT go back down except to exit the building.
你可以在任何一層選擇任意商品，你也可以選擇登上下一層，但是，你不能往廻走，除非你要離開商店。