Until 21st century, with the development of science and technology, people began to deepfreeze the dainties and nutrition so that can supply foods stably.
至二十一世纪，随着科技进步，人们的食物在得到了稳定的供应的保证后，开始把美味和营养速冻起来。
Until 21st century, with the development of science and technology, people began to deepfreeze the dainties and nutrition so that can supply foods stably.
至二十一世纪，随着科技进步，人们的食物在得到了稳定的供应的保证后，开始把美味和营养速冻起来。
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