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据南丹麦大学的埃尔维斯·格波·徐介绍，一次性口罩是塑料制品。
According to Elvis Genbo Xu from the University of Southern Denmark, disposable masks are plastic products.
youdao
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据南丹麦大学的埃尔维斯·格波·徐介绍，一次性口罩是塑料制品。
According to Elvis Genbo Xu from the University of Southern Denmark, disposable masks are plastic products.
youdao