The biggest challenge is that material science is complex and requires expensive equipment.

I'm not a doctor I'm a chef, I don't have expensive equipment or medicine.

They have also expressed concern that changes in satellite technology can require expensive upgrades to ground stations and processing equipment.

Expensive?

Under the chapter for acquisition of permanent equipment, the provision made for the purchase of various equipment was not fully utilized, since computer equipment purchased was less expensive than estimated and the purchase of several other items were deferred to 1994.

That was followed by a brazen attack on a naval base in Karachi, in which some very expensive equipment, including aircraft, was destroyed.

So expensive...

That's expensive

It's expensive.

Too expensive.

Quite expensive.

It's expensive.

Naval assets are not only expensive to build they are extremely costly to operate, as each unit requires specialized equipment and highly trained personnel.

They're expensive to install, but they are more expensive not to.

It's too expensive.

Candles were expensive.

It's too expensive!

Is it expensive?

What's that expensive?

Why so expensive?

It's really expensive.

But that's expensive.

It's very expensive.

Is it expensive?

Parking's really expensive.

It's expensive, right?

Were they expensive?

Must've been expensive.

That's so expensive!

Lawyers are expensive.

Bread is expensive.

The expensive kind.

Nothing too expensive.

What are my most expensive resources? What are my most expensive activities?

For all this high tech, expensive equipment, this is still the best way to get in the water, just flop over the side of the boat.

It's expensive so expensive that very few people could own or use it.

These are more expensive than sports cars but not as expensive as supercars.

Most people don't want the most expensive, they don't want the least expensive.

This watch is expensive.

It is too expensive.

That suit looks expensive.

Is that too expensive?

This is not expensive.

It is hugely expensive.

Raising capital is expensive.