Sam entered a world of iceboxes, horse-drawn buggies and, commonly, outhouses.

山姆进入一个世界是有冰箱，马拉手推车或更普通的外围建筑的世界。

In those days, refrigerators really were iceboxes, cooled by chunks of ice whose size varied according to the size of the appliance.

那时的冰箱真的就是冰盒子，得靠一块块的冰来制冷，冰块的大小根据容器的大小而各不相同。

Iceboxes made of wood were widely used in the Qing royal court. Due to the weak conductivity of heat, lead or tin was put inside the box to extend the hours for preserving the natural ice.

清代宫廷已经普遍使用木制“冰箱”，其采用导热性较弱的铅或锡为里，以延长天然冰的使用时间。