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1·Yet the conclave is likely to do little to change perceptions about the precariousness of world oil markets.

但这次会议可能很难改变人们认为世界石油市场不稳定的看法。

2·The vast physical and human disruption caused by the storm and the failure of the levees only heightened the city's sense of precariousness.

暴风雨和堤坝的决口引起巨大的自然灾害和人的恐慌情绪仅仅强化了人们对城市不安全的担忧。

3·This year, the severe precariousness of the marketing in Chinese telecom communication, especially the mobile phone market, has reached its highest flight ever.

今年，中国移动通信流通领域的动荡达到前所未有的激烈程度，特别是手机流通市场最具代表性。