The trap meant that higher populations merely brought lower living standards (until 1760, the best time to have been a British labourer was after the Black Death).

马氏陷阱意味着高人口仅仅带来的是低生活水平(直至1760年，在英国做农民的最佳时机是在黑死病事件发生之后)。

youdao

The accumulated oil and gas in the trap came from the Lower Tertiary hydrocarbon source rock 2000~5000 meters below.

渤海油区上第三系为河流相沉积，不能生油，其圈闭中聚集的油气来自2000?。

youdao

The higher the olefin trap temperature, the lower the ability of adsorbing olefins.

烯烃的穿透性随碳数的降低和烯烃阱温度的升高而增加。

youdao

Japan seems to be stuck in a classic liquidity trap: it needs lower real interest rates to boost demand, but because of deflation they are stuck painfully high.

ECONOMIST: The new danger

Mr Mayer thinks that the eastern part of Germany, where economic growth is even lower than in the west, is in a different kind of trap.

ECONOMIST: The sick man of the euro

Two, the poverty trap is also a severe marriage penalty, making it virtually economically impossible for lower income classes to marry.

CNN: Americans' 90% tax rate