他对这个复杂理论的深刻理解让教授们都感到惊讶。

His deep ___understanding of the complex theory astonished all the professors.

双方达成了谅解，同意共同开发这个项目。

The two parties came to an ___understanding about jointly developing the project.

她以极大的理解接纳了孩子们的错误。

She accepted the children's mistakes with great ___understanding.