"冰川时代"是个多义词，它可以指冰川时代,冰川时代,冰期。
这一发现将有助于科学家揭开冰川时代的奥秘。
The discovery will help scientists unravel the mystery of the Ice Age.
气候预言家们开始不安起来，天气的不寻常可能是另外一个冰川时代到来的前兆。
Climatological Cassandras are becoming increasingly apprehensive, for the weather aberrations they are studying may be the harbinger of another ice age.
当时的温度只有现在的5%，但是我们面临的危险要比将要到来的冰川时代更棘手。
Temperatures have been as high as they are now only about 5% of the time. But there is a peril more immediate than the prospect of another ice age.
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