Sentence examples for difficult to study from inspiring English sources

"It is difficult to study from others.

Tinnitus can be difficult to study.

The wealthy and powerful are notoriously difficult to study.

TR: Is it difficult to study anesthesia in people?

Autism is difficult to study, diagnose, and pin down.

The tumor has also been difficult to study.

The great whales provide great problems: it is difficult to study them in the field.

"The pancreas has always been difficult to study," Dr. Liddle said.

It's difficult to study a master's at 69, because I often get exhausted.

The human brain is extremely difficult to study, especially when a person is still alive.

But they're notoriously difficult to study because the cell cycle is so fundamental to life.