冰冻三尺，非一日之寒 翻译成英语

个人感觉这样翻译比较好：Rome was not built in a day.
楼上的第二句翻译错了一个字母：
Ice three feet thick is not frozen in a day.

Rome is not built in a day.
冰冻三尺，非一日之寒。

Ice there feet thick is not frozen in a day. 冰冻三尺非一日之寒。

都可以的