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PET bottles are generally only one bottle.
Some habits because of health problems, or ceremonial use of straw.
Bottle is a bit big for a child, so I will use the straw.
Straw will usually discarded after use, so it will not cause more environmental waste.
So I designed a dual-use PET bottles.
Straw is the one with the bottle shape.
More straw on a lid.
Allow consumers to use, more convenient.
Afraid will overflow, so the environment will be just does not mess.
Nan Hua University