Instead of armies, peacekeepers often have to deal with militia groups and private security forces in which the chains of command are harder to track.

And I'm trying harder and harder.

Now we'll make it harder, a little harder.

Hence, it must be harder. Well, it's not harder.

I'm going to push it a bit harder now, harder than I just pushed Chris.

I'm going to study harder.

The larger and more complex the company, the harder it is to track all of the firms with which it does business, the firms that they then subcontract to, and so on. Companies, not surprisingly, say that their responsibility extends only so far.

Keep to the track, to the beaten track Never return to the bridges you've burned.

I want you to work harder.

I expect you to work harder.

You have to study Japanese harder.

They require me to work harder.

Keep to the track, to the beaten track Memory holds all you need of the truth.

Keep to the track, to the beaten track No one is waiting and nothing is there.

Keep to the track, to the beaten track No one is waiting and nothing is there.

We find more and more complex arrangements of machines that make it harder and harder to diagnose what's going on.

I inspired my students to work harder.

Work harder if you plan to succeed.

OK. It gets them to work harder, sometimes.

You'll have to study harder from now on.

I made up my mind to study harder.

You should study harder.

We should've worked harder.

We should've studied harder.

Media and advertising companies still use the same old demographics to understand audiences, but they're becoming increasingly harder to track online, says media researcher Johanna Blakley. As social media outgrows traditional media, and women users outnumber men, Blakley explains what changes are in store for the future of media.

They are often ignored because they're harder to help.

But here's a case which is harder to reject.

The third configuration is a little harder to understand.

They are often ignored because they're harder to help.

I think it necessary for you to study harder.

No. So I had to think a little harder.

Previous Track

Next Track

To date, the Commission has made steady progress on the Lebanese track. It remains to be matched on the Syrian track.

You should have worked harder.

But here's a harder question.

Is that easier or harder?

Same principles applied calculations, harder.

You should study English harder.

I'll try harder next time.

You should have studied harder.

From now on, try harder.

Little wonder, then, that political leaders consistently personalize international conflicts. Alas, such commonplace language also makes wars harder to avoid, harder to end, and arguably more deadly.

As the surface of the ocean gets warmer, the water is lighter when it's warmer, it becomes harder and harder to turn the ocean over.

Never retreat to the 'glorious past.' Keep to the track, to the beaten track Treat every day of your life as your last.