名词
中文翻译：平原
同义词：
['grassland', 'plains']
例句：
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1.The peneplain is a vast expanse of grassland in the northern part of the country.
这个国家北部的广阔草原是一片平原。
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2. The farmer plowed his peneplain every morning to prepare for planting.
农民每天早上都会在平原上耕地，为播种做准备。
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3. The peneplain is home to many species of wildflowers and butterflies.
平原上栖息着许多野生花卉和蝴蝶。