The countryside undulates pleasantly.

原野起伏，景色宜人。

《牛津高阶英汉双解词典》

The road undulates through pleasant scenery.

那条道路在宜人的景色中延绵起伏.

辞典例句

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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