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矿泉水瓶含有一种叫做PET的塑料材质,用一次是安全的,如果你因节俭或方便而重复使用,就有致癌危机。一般塑料物品底部都有一个带箭头的三角型,三角型里面有一个数字。标志为“|”:PET聚对苯二甲酸乙二醇脂
The water bottle contains a plastic material called PET that is safe to use once and has an oncogenic crisis if you re-use it for economy or convenience. The bottom of the general plastic items have a triangle with the arrow, there is a figure inside the triangle. Marked as “| ”: PET polyethylene terephthalate