The report further speculated that liquids such as ammonia or formaldehyde could also work in place of water as biosolvents on alien moons and planets.

报告进一步推测在外星球像氨或者甲醛这样的液体可以替代水作为生物溶剂。

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The burden increased still further when it was freely speculated that only a victorious Olympic campaign would keep Luxemburgo in a job.

BBC: Brazil boss faces exit

Though American interest rates are now at their lowest level for the past 40 years, some economists have speculated that the Federal Reserve, America's central bank, would cut them still further to try to calm the markets and stabilise the economy.

ECONOMIST: Wobbling