这些用过的塑料口罩不仅会污染地球，还会污染海洋。
These used plastic masks can not only pollute the earth but also oceans.
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.
通常来讲，这种口罩佩戴起来很舒适，但是塑料边缘会在皮肤上留下印记，和其他柔软材料的口罩相比，印记消掉要花更长的时间。
This mask is usually very comfortable but the plastic edges can leave skin indentations which last longer than other softer masks.
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