Yahoo香港字典 搜尋

  1. downy mildew

    • IPA[ˈdounē ˈmilˌdo͞o]
    • n.
      mildew on a plant which is marked by a whitish down composed of spore-forming hyphae, penetrating more deeply into the plant than powdery mildew.
    • noun: downy mildew