1. Making an efficient icebox was not as easy as we might now suppose. ����һ̨��Ч�ʵġ����䡱���������������ô��
2. The commonsense notion that the best icebox was one that prevented the ice from melting was of course mistaken. ��Ϊ��õı���Ӧ�÷�ֹ�����ڻ�����һ���ձ�Ĺ۵���Ȼ�Ǵ���ġ�
3. " Seward was laughed at for his willingness to spend so much on "Seward's icebox" and Andrew Johnson's "polar bear garden. ��Ϊ����ô�ߵĴ�����������������ı����Լ�����³��ղɭ�ġ������ܵĻ��������������ij�Ц��
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n.
1. white goods in which food can be stored at low temperatures