At the city of Coba the Maya built dikes around a lake in order to raise its level and make their water supply more reliable.

在科巴市，玛雅人围绕着一个湖泊修建堤坝，以提高水位，使供水更加稳定可靠。

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A sensible one would raise the price of coal-fired generation enough to make cleaner, plentiful natural gas an economic alternative.

一个明智的做法是提高煤电的价格以使干净的、丰富的天然气成为经济的选择。

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Michael Woloz, a spokesman for the Metropolitan Taxicab Board of Trade, said the fleet owners who make up his organization do not begrudge drivers a raise but will suffer because of another measure, approved on a 5-4 vote, to eliminate a 5% charge that fleets and garages can currently levy on drivers for the cost of processing credit-card transactions.

WSJ: Taxi Fare Increase Approved

HMOs as well as the trade group AHIP, when explaining why they must raise rates next year, make a bunch of excuses.

FORBES: Nobody's Using Their Health Insurance--But HMOs Aren't Offering Refunds

Under the rules for the FPC, devised by the chancellor, it can and will make a declaration that the banks as a group have to raise a specific amount of new capital.

BBC: UK banks 'still short of capital', says BoE