The sky was dark and threatening.
天空乌云密布，阴沉沉的。
Tax men were always coming and threatening us.
收负责收税的人经常来，还威胁我们。
It was a bleak period of present privation and threatening disaster.
那是一个暂时匮乏和灾难迫在眉睫的清凉时代。
Instructor: Because it makes your serve more powerful and threatening.
教练：这可以使你的发球更有力度，更有威胁。
Companies have been more aggressive and threatening to move production to Mexico.
公司越来越积极地和具有威胁性地把生产转移到墨西哥去。
The uprising is threatening the delivery of humanitarian supplies of food and medicine.
这场暴乱正威胁到食物和药品等人道主义物资的运送。
The government was dragging its feet, and this was threatening moves toward peace.
政府一拖再拖，这是有碍和平的行径。
And now, the Greeks are threatening to bring the whole system crashing down.
现在希腊人是危险的带来整个系统倒下。
Public prosecutors, police and prison officers are threatening similar action.
检察官，警察和狱警都在威胁类似的行为。
This can damage organs, and may be life threatening.
这会破坏器官，并威胁到生命的安全。
And in those patients, the disease can often quickly become life-threatening.
在那些病人中，疾病可能会迅速地威胁到生命。
DIC is extremely life threatening and difficult to treat.
DIC会严重地威胁人的生命，而且很难抢救。
However, HAV infections can also be severe and life threatening.
然而，甲型肝炎病毒感染也可能很严重，甚至会威胁生命。
Potentially threatening, and 5% were clearly dangerous. The board.
乎不造成威胁，30%具有潜在威胁，还有5%很明显是有危险的。
And by threatening, of course, he meant he was an educated black man.
而这个威胁，很显然，他的意思是他是一个受过教育的黑人。
Improperly tied knots can mean the difference between a safe climb and serious, life-threatening injuries.
打不好结可能意味着安全的攀岩和严重的、危及生命的伤痛这样的巨大差别。
With my knowledge and my experience, I would say that a machine is not threatening.
以我的知识和经历来看，我会说计算机不会对人构成威胁。
White pollution has gotten worse in cities and is threatening to spread to the ntryside.
城市白色污染日益严重，而且有向农村蔓延的危险。
Heart disease is a life-threatening matter and is the leading cause of death in America.
心脏病是威胁生命的问题，并是主要的死亡原因在美国。
There are threatening avalanches and ice falls that protect the mountain .
雪崩和落冰好象都在保护这山一样。
And the assailants are still on the march, threatening other nations, great and small.
这些攻击者还在进军，威胁其他国家，大的和小的。
Soon, reports said another volcano had become active and was threatening a town.
很快有报道说，另一处火山也即将暴发，并威胁一座城镇。
The malignancy is seriously threatening the human life and health for a long time.
长期以来，恶性肿瘤对人类生命健康构成了严重威胁。
Malignant tumor is the severe disease threatening human life and health.
恶性肿瘤是危害人类生命与健康的最严重疾病。
This situation is life threatening and must be treated immediately and aggressively.
这种情况会危及生命，必须立即积极处理。
Terror is threatening with darkened sky and quaking earth.
吞天暗地的恐怖让天空灰暗，大地震颤。
Deteriorating environment due to improper human activity is threatening human survival and development.
人类不合理的活动是产生环境问题的根源。
Deteriorating environment due to improper human activity is threatening human survival and development.
人类不合理的活动是产生环境问题的根源。
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