pump是什么意思？

Millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them.

There were no petrol pumps and few garages, so every driver had to be his own engineer for the frequent breakdowns.

Consumers, in the U.S. at least, are acting cautiously with the savings they're getting at the gas pump, as the memory of the recent great recession is still fresh in their mind.

Consumers have more money in their pockets when they're paying less at the pump.

California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their distribution system.

It is profitable to drill to depths more than 1,000 feet for oil and gas extraction, but only recently in California has it become profitable to pump water from this depth.

The president's stimulus package is pumping money into research to compare how well various treatments work.

Short-term oil shortage drove American consumers to wait in long lines at gas pumps.

It then ships the gas 200 miles by pipeline to Canada, where it is pumped underground in oil recovery operations.