widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States
同义词:oxtongue??/??bristly oxtongue??/??bugloss??/??Picris echioides
any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
同义词:ragweed??/??ambrosia
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。