英汉词典

1. 忠实的;忠诚的;忠贞不渝的
    Someone who is faithful to a person, organization, idea, or activity remains firm in their belief in them or support for them.

    e.g. She had been faithful to her promise to guard this secret...
           她一直信守承诺，保守着这个秘密。
    e.g. 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。