undulates造句

The countryside undulates pleasantly.
原野起伏,景色宜人。

The road undulates through pleasant scenery.
那条道路在宜人的景色中延绵起伏.

The price of steel and iron products and materials undulates fiercely on the current market.
当今的市场,钢铁产品和原材料的价格上下波动剧烈.

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