Sentence examples for extremely difficult to mark from inspiring English sources

He's always in space and he's extremely difficult to mark.

It is extremely difficult to make a reliable estimate.

He is so difficult to mark.

"If she was not there," Dr. Primas said, referring to Ms. Marker, "it would've been extremely difficult to diagnose".

I found that extremely difficult to overcome".

It is extremely difficult to manufacture.

It is extremely difficult to tell.

While extremely beautiful, they are also extremely difficult to read.

Unfortunately, parallaxes are extremely difficult to measure.

Description: English glosses extremely difficult to hear.

"The scenes are extremely difficult to interpret.