想问为什么雪糕放进可乐里就会起泡泡呢？
Just last Friday, I went to have Wendys with my friends and to check out the Chocolate Cola Float. And one question came across me. Why do bubbles appear when the ice-cream is added to the cola? Is it something like the mentos and cola? (PS. picture was taken when not much soda was left)
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