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Babies like to chew on hard objects when they're teething.

The ground was frozen hard and was impossible to dig.

Brazil nuts have very hard shells.

For running on hard roads, you need shoes with extra cushioning to absorb the shock.

Mahogany is a hard wood and pine is a soft wood.

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I found it hard to follow what the teacher was saying, and eventually I lost concentration.

The exam is so hard that only 5% of all applicants pass.

It was hard to be angry with him when he looked so penitent.

They find it hard to live on their state pension.

Ending a relationship is always hard but in this case it's for the best.

The teacher found it hard to keep her class in order.

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After all that hard work, you deserve a holiday.

Give the rope a hard pull.

I gave the door a hard push, but it still wouldn't open.

After a hard climb, we were rewarded by a picture-postcard vista of rolling hills under a deep blue summer sky.

The last part of the course is much harder.

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The authorities plan to come down hard on truancy in future.

"Well okay, perhaps I was a little hard on her, " he conceded.

The instructors worked us very hard on the survival course.

Watch out for those two - they're well hard.

Sports equipment is designed to withstand hard usage.

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Judy has never been very clever, but she tries hard.

I don't like the man, but I have to admit that he works incredibly hard.

This type of glass won't shatter no matter how hard you hit it.

I kicked the ball as hard as I could.

Blow really hard into the tube.