说明你的工作已经不具有挑战性了，你感到自己的才能最好能在其他的地方有所施展。

Explain that your job is no longer challenging and that you feel your talents are best used elsewhere.

youdao

小波变换不具有几何不变性，因此，小波域水印对抗几何攻击是一个十分困难和富有挑战性的课题。

The wavelet transform has no ability to resist to geometric distortion, so the wavelet domain watermarking resisting to geometric distortion is a very difficult and challenging subject.

youdao