[問題] 咖啡的塑膠杯蓋
大家好,剛去711買了一杯中熱美。剛到手時發現杯蓋髒髒的,但細眼一看發現原來是杯
蓋上多了好多個小洞!打洞的位置主要是杯緣處及固定 開口的凹陷處!
不知道多開這些洞有什麼特別用意嗎?
開口凹陷處 https://imgur.com/gallery/DLJcL
杯緣 http://i.imgur.com/sCQdfyn.jpg

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※ 編輯: lukeshih (223.136.67.199), 07/28/2017 14:10:05
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