adj.健忘的；疏忽的
Grandfather is forgetful and often repeats himself when he tells a story. 爷爷记忆不好，他讲故事的时候老爱重复。
My old uncle has become rather forgetful. 我的老叔父已经有点健忘了。
n.健忘
adv.不注意地；健忘地
