adj.做错的
动词err的现在分词形式.
Good students as they were (=Though they were good students), they sometimes erred. 虽然他们是好学生，偶而也会犯错。
She erred in failing to meet him in person. 她错在没有亲自与他见面。
n.青鱼；鲱
n.谈及；提交；咨询
动词refer的现在分词.
n.转移；传递；传输
动词transfer的现在分词形式.
v.商讨；授予，赐予
n.更喜欢；提出；推荐；优先偿付
动词prefer的现在分词形式.
