短语词组短语a head of lettuce 一颗生菜;一头生菜Head garden lettuce 结球生菜head of lettuce 莴苣头Half a Head of Lettuce 半颗美生菜Butter head lettuce 奶油生菜cabbage lettuce head lettuce 结球莴苣Head lettuce Rhizopus leaf rot 结球莴苣根霉烂叶病 返回 head lettuce