T is the 20th letter in our alphabet. But what could to a T possibly mean?
to a T 恰好
Dan: Anna, I see you're trying some of my rosemary garlic bread.
Anna: You made focaccia! I love focaccia!
Dan: Well, enjoy some focaccia.
Anna: Oh, I will. Oh, Dan. Dan, you baked this to a T. This is the best focaccia I have ever had!
If you do something to a T, you do it exactly as it should be done. You do it perfectly. It can also mean to describe or suit someone very well. Dan's focaccia really is perfect.