形容词是faithful，意思是忠诚的，例如：
1、Older Americans are among this country's most faithful voters.较年长的美国人是这个国家最忠实的选民群体之一。
2、He entrusted his children to a faithful friend.他把他的孩子嘱托给一位忠实的朋友照料。
3、The president will keep the support of the party faithful.总统将继续获得忠诚党员的拥护。
