原文：I learned that the white frost on frozen food is actually freezer burn, caused by moisture escaping the food and crystallizing on the surface, which means my ice cream has been slowly dehydrating in there.
译文：才知道冷冻食品上面那层白霜叫冻烧，是食物里的水分跑出来在表面结了冰晶，也就是说我的冰淇淋一直在冰箱里慢慢脱水。
