This phenomenon has aroused heightened concerns from our society.

这种现象已经引起了社会的高度关注。

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But recent jitters in stock markets and commodities markets have heightened concerns that some metal prices have peaked.

但最近股票和商品市场上的剧烈反应使人们担心某些金属材料的价格已经升到了顶点。

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Financial markets: Conditions in international financial markets remain difficult, with heightened concerns over credit persisting.

金融市场：国际金融市场的状况依旧困难，信贷将持续紧缩的忧虑也被突出。

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These concerns were heightened in June when gunmen fired automatic weapons into a mosque,killing 12 people attending evening prayers.

VOA: standard.2009.08.31

Holbrooke's location in Pakistan personally coming here is a closely guarded secret, given the heightened security concerns following deadly terrorist attacks in Lahore and Peshawar,last week.

VOA: standard.2009.06.03

On the flip side, using credit cards abroad can mean additional fees and heightened concerns about credit card fraud.

BBC: How credit card-friendly is your next destination?

But recent jitters in stockmarkets and commodities markets have heightened concerns that some metal prices have peaked.

ECONOMIST: Mining in Canada

The Euro currency fell to a fresh two-month low Thursday amid heightened concerns regarding the European Union sovereign debt crisis.

FORBES: P.M. Kitco Metals Roundup: Gold Ends Higher, Near Daily High on Fresh Safe-Haven Demand