The grass was covered with frost in the early morning.（英译中)

In winter the lake is covered with ice.（英译中)

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______the ground covered with ice, the road has become very slippery.A．AtB．AlongC．OnD．With

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（课外资料)In the grass, a baby duck was hatched （孵化) out in a college biology lab with

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The little valley beneath the ivy－covered hills became ______ with white shirts.A: do

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There was no snow, the leaves were gone from the trees, and the grass was dead.

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How iPads syncs with computes？A.The iPad allows users to purchase and download songs fro

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With the open－access publishing model, the author of a paper is required to[A] cover th

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