millpond

The sea was as calm as a millpond.

海上风平浪静。

《牛津高阶英汉双解词典》

I want to sail sticks a fresh mud puddle millpond and make a sidewalk with rocks.

我想在新积起的泥水坑边玩耍,让小木棍从一头漂到另一头;用石子在磨坊贮水池打水漂儿,并用石头堆出人行道.

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We enjoyed the ferry crossing because the sea was as a calm as a millpond.

那次我们坐船横渡真舒服,因为海面风平浪静.

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