For many people trying to shed a few kilograms, it's hard enough to lose the weight, but many experts say it's even harder to keep the weight off.

VOA: standard.2010.07.30

She says protecting your child from the flu is already hard enough.

VOA: standard.2009.12.18

That is,this kind of pull-yourself-up-by-your-bootstraps, that with enough determination and hard work that you can transcend limitations of money or class or gender.

VOA: special.2010.03.08

He worked hard. In time,he earned enough money to take control of an iron factory.

VOA: special.2010.02.25

So if we can get better at giving people triggers of when to leave early, which we will work very hard on doing, then people evacuating themselves is the safest thing to do as long as it's early enough."

VOA: standard.2009.06.24