露西安之歌里”The leaves were long, the grass was green,
The hemlock-umbels tall and fair”
第二行的hemlock-umbels是甚么。。。字典上莫有啊啊。。求解。。。我问老师这是毛意思，结果她说我不好好学习orz
顺便问一下，这首诗适合背下来么。。。