Well before the arrival of freezers, there was a demand for ice for foodpreservation and catering, Malcolm will explain the history of importing natural ice and the technology of building ice wells, and how London's ice trade grew.
在冰柜到来之前, 人们对冰的需求是用于食物保存和餐饮, Malcolm 将解释进口天然冰的历史和建造冰井的技术, 以及伦敦的冰贸易是如何增长的。
2015全国卷1