Ragweed
n. 豚草\\n[医] 豚草, 豕草
✅ 同义词
📖 牛津释义
ragweed
n[U, C]
N American weed producing large amounts of pollen which causes hay fever 豚草（产於北美, 其花粉能使人患枯草热）.
🗣️ 情景例句
Many hands make light work.
人多好办事。
You haven't been around much lately,have you?
你近来不大出来走动了，是吧？
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。