Sentence examples for is notoriously difficult from inspiring English sources

"But it is notoriously difficult.

Passing amendments is notoriously difficult.

Tracking such empires' activities is notoriously difficult.

Unfortunately, studying jellyfish is notoriously difficult.

Predicting missile capabilities is notoriously difficult.

Its precise knowledge is notoriously difficult.

The question is notoriously difficult to answer. . . .

Predicting traffic growth is notoriously difficult.

And integrating technology firms is notoriously difficult.

Precise attribution of marketing results is notoriously difficult.

It is notoriously difficult to ascertain cause from correlational results.