to the letter

副词 to the letter:

1. in every detail
   同义词：to a T, just right, to perfection

1. Soldiers have to obey orders to the letter.
   战士必须百分之百地服从命令。
2. I'm composing a formal reply to the letter.
   我正写一封郑重其事的回信。
3. She carry out all her pledge to the letter.
   她不折不扣地履行了她的所有诺言。
4. John obeyed his father's instructions to the letter.
   约翰不折不扣地按他父亲的指示行事。