名词
中文翻译：黑种草
同义词：
['black mustard', 'black sesame']
例句：
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1. The black mustard plant is a common weed in the garden.
黑种草是一种常见的花园杂草。
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2. Black mustard oil is used as a natural remedy for digestive problems.
黑种草油被用作天然的消化问题治疗剂。
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3. The black mustard flowers are small and have a strong, spicy smell.
黑种草花小而具有强烈的辛辣气味。