大学英语：loyalty n.the quality of being faithful in your support of somebody/something忠诚;忠实;忠心耿耿

　　eg:We all have a loyalty to the company.我们对公司都有效忠的义务。

　　衍生

　　loyal adj.true and faithful忠诚的;忠贞的

　　用法：~to sb./sth.

　　eg:remain loyal to one's principles信守自己的原则

　　2、befriend v.to become a friend of somebody,especially somebody who needs your help做朋友;友善相待

　　eg:They befriended the young girl,providing her with food and shelter.他们热心地照顾这个年轻的姑娘，给她吃的﹑给她住处。

　　构词be-改变词性的前缀

　　加在名词或形容词前，构成及物动词

　　friend n.朋友→befriend v.友好对待

　　calm n.镇静→becalm v.使镇静

　　head n.头→behead v.砍头

　　little adj.小的→belittle v.轻视;贬低