crustiness

1.Once I broke through my initial crustiness and got into the habit, it even became a game: Can I make this grump open up?

一旦自己原来粗鲁的举止，养成这个好习惯，甚至把它变成一个游戏：我还能让脾气再发作吗？

2."Well, Charlie, don't you look dashing!" Renee said in a tone that was almost shocked. That might have explained the crustiness of Charlie's answer.

“喔，查理，你上去神气极！”蕾内语调中带着一丝惊讶。这令查理的回答变得生硬起来。