名词
中文翻译：小山
同义词：
['hill', 'mound', 'hillock']
例句：
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1. The hills in the countryside are covered with greenery.
乡村的山丘上覆盖着绿色植被。
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2. The farmer ploughed the fields to prepare for planting.
农民翻耕田地，为播种做准备。
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3. The ridge of mountains runs through the valley.
山脉的脊梁穿过山谷。