thank you very much for your compliment, exp. for your comments

Great catch.

Absolutely and completely: here the "T" should be held, and should not be pronounced with a sharp burst of air。Or in Chinese: "T" 在两元音之间失去爆破，就是说只作它的发音动作，而不发出它的音来，快速滑入下一个音。

let or best: you're absolutely right, exp. for the word "best"in this reading。

 

I couldn't wait having your comments on the subtle differences of pronounciation points.