Ice Period Division 冰期划分
ice period of the Quaternary 第四纪冰期
generating electricity in ice period 冰期发电
ice-free-period 无冰期
In winter, the ice period is longer, which brings on ice art there.
隆冬结冰期较长，异常寒冷，于是，这里就诞生了冰灯艺术的奇葩。
There was a period of excessive warmth which melted some of the polar ice.
有段时期温度过高，融化了极地的部分冰层。
Turns out the Cremonese violins were made from trees that grew during a Little Ice Age, a period when temperatures across Europe were significantly lower than normal.
事实是，克雷蒙小提琴由生长在小冰河时期的树木制成，当时整个欧洲的气温明显低于正常水平。
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