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Rio 's outlook in its most important customer nation has brightened , slightly .

力拓在其最重要市场的前景略微光明了一些。

China 's economic outlook has also brightened .

中国的经济前景也变得光明起来。

The sky brightened after the storm .

暴风雨过后天空明亮起来了。

Such optimism has fuelled commodity prices which have , in turn , brightened the outlook for brazil and other commodity exporters .

这种乐观的预期刺激了商品价格，进而又为巴西和其它商品出口国照亮了前景。

During this time , several of the arcs brightened and grew more vivid as others washed out in the clouds .

在这段时间里，有几个光弧变得更为明亮和生动，而另外的一些却在云层里褪色了。