Sentence examples for are extremely hard from inspiring English sources

Those materials are extremely hard, with the hardness of bulk c-BN being slightly smaller and w-BN even higher than that of diamond.

that are extremely hard to specify.

However, the conditions are extremely hard to meet in practice.

Brain tumors known as glioblastomas are extremely hard to treat.

But sometimes, groups are extremely hard to identify.

They are extremely hard to stop without intelligence.

These excellent electrical parameters are extremely hard to simultaneously realize in most giant dielectric materials.

"Class actions involving race discrimination are extremely hard to win," Guillory said.

Stage four is the deepest stage, and during this time, you are extremely hard to wake.

Jan Perry, a bow hunter, said that turkeys are "extremely hard" to hunt.

And because most of the mutations are rare, they are extremely hard to find.