Tensions grounded in financial problems often play a key role in ending a marriage.
以经济问题为基础的紧张关系，往往是婚姻破裂的关键因素。
With so much at stake, the Inuit are determined to play a key role in teasing out the mysteries of climate change in the Arctic.
面临如此多的危险，因纽特人决心在揭开北极气候变化之谜方面发挥关键作用。
When wolves later reached the island, naturalists widely assumed that the wolves would play a key role in controlling the moose population.
博物学家们普遍认为，当狼群之后抵达该岛时，它们将在控制驼鹿数量方面发挥关键作用。
"They play a key role in helping stabilize Afghanistan and Pakistan.
VOA: standard.2009.08.31
Though funding from the IMF,the World Bank, the United States and other donors has made it possible to subsidize treatment and prevention methods in Africa, Dr.Rwagacondo says that local governments also have a key role to play in mobilizing their populations and eradicating malaria in the long term.
VOA: standard.2009.04.25
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