你忠实的英文

loyal 忠诚的 是正确的

商业书信结尾谦称的用词必须和称呼相对应，如：Dear Sirdear sirsdear madamdear sir or madam结尾用 your faithful（formal）您忠诚的 Dear Mr LeightonDear Mrs HolmesDear JacquelineDear Steven结尾用 your sincererly（informal）您诚挚的

Faithfully Yours,orYours truely,orSincerely Yours,

your faithful/loyal/staunch要用adj.

adherence faithfulness fealty fidelity ligeance loyalism loyalty loyalism 忠诚,忠义 loyalty 忠诚, 忠心 ；忠于…感情, 忠心记得采纳啊

your sincererly your trulyyour faithful均可

1. true; faithful; constant; true-hearted2. truthful