可引用的發言段落Citable transcript turn
#212422
講者：Speaker:
"Reverse Vending Machines" for Collecting Drink Containers for Recycling. The "cleanest loop"
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可引用的發言段落Citable transcript turn
講者：Speaker:
"Reverse Vending Machines" for Collecting Drink Containers for Recycling. The "cleanest loop"
j 下一段next turnk 上一段previous turn