名词
中文翻译：豚草
同义词：
['wild mustard', 'ragwort', 'field bindweed']
例句：
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1.The farmer sprayed the pigweed to control its spread.
农民喷洒了豚草来控制其蔓延。
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2.The wild mustard was a common weed in the past.
野生芥末在过去是一种常见的杂草。
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3. Field bindweed is a problem for farmers because it grows quickly and can choke out other crops.
田间菟丝子是农民的一个难题，因为它生长迅速且可以抑制其他作物的生长。