Anna read the letter with incomprehension.

安娜茫然不解地读了那封信。

Rosie had a look of incomprehension on her face.

罗西一脸茫然。

But the incomprehension is mutual.

但是不理解是相互的。

Left me stunned with incomprehension and sadness.

离开我震惊与不解和悲伤。

But, he adds, many arise from mutual incomprehension.

但他补充说，这都是由相互不理解所造成的。