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ice age

noun
🔊/ˈaɪs eɪdʒ/
🔊/ˈaɪs eɪdʒ/
(often the Ice Age)
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  1. one of the long periods of time, thousands of years ago, when much of the earth’s surface was covered in ice冰期；冰川期；冰河时代Topics Historyc1