With legal battles ahead, the zone's future looks uncertain at best.
司法拉锯战在前，“清洁空气区”的未来充其量只能说是前途难卜。
Meanwhile, if you want to buy a cheap house with an uncertain future, apply to a house agent in one of the threatened areas on the south coast of England.
与此同时，如果你想买一套廉价而前景未卜房子，那就去找英格兰南海岸某一个危险地区的房产经纪人。
It's uncertain whether English will be the world language in the future, but we should still keep learning.
未来英语是否会成为世界语言还不确定，但是我们也应该努力学习。
With many facing an uncertain employment future, trust in the financial institutions and in politicians has evaporated.
VOA: standard.2009.03.28
Yet traveling back to smog-bound Beijing, past industrial factories, high-rise apartment blocks under construction,shopping malls and the ever growing number of cars, the future once more looks uncertain.
VOA: standard.2010.08.03
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