Cardiovascular disease has been among the gravest diseases with morbidity and mortality both ranking the first overtaking that of tumours, posing severe threat to mankind.

心血管疾病是当今世界上威胁人类最严重的疾病之一，其发病率和死亡率已超过肿瘤性疾病而跃居第一。

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Pressure bump mostly occurring in developing workings is a hazard posing severe menace to mining operations.

冲击地压是一种严重威胁矿井生产的灾害，大部分发生在采准巷道。

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On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21