名词
中文翻译：球茎
同义词：
['bulb', 'corm', 'bulbous root']
例句：
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1. The potato is a popular vegetable in many parts of the world.
土豆是世界上许多地方的流行蔬菜。
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2. The bulbs are ready to harvest after several months.
这些球茎在几个月后就可以收获了。
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3. The farmer carefully dug up the bulbs and planted them in the garden.
农民小心翼翼地挖出球茎，把它们种在花园里。