英语语法分析

"There was nothing to prevent thee," he answered crustily.

“没有什么能阻止你。” 他坚定地回答。

I only horizontal under a heart, crustily skin of head.

我只有横下一条心，硬着头皮上了。

Crustily skin of head to do something, often made yourself.

硬着头皮去做某事，往往成就了你自己。