Liquid ammonia, mainly used as refrigerant or to make Ammonium and nitrogen, is an important yet dangerous chemical.
液氨主要用作制冷剂及用于制取铵盐和氮肥，是化学工业中一种重要的、存在危险性的化学品。
Its subject was cholesterol, the vital yet dangerous yellowish substance whose level in the bloodstream is directly affected by the richness of the diet.
研究对象为胆固醇，存于血液内部的一种既有益也有害的微黄色物质，其含量受丰富的饮食影响。
Yet all these participants confronted the same lesson that the us military learnt in Vietnam: mission creep is the most dangerous of games.
然而，所有参与者都面临着美军在越战中的同样教训：游戏中最危险的是使命的蜕变。
Yet everyone assumes their own interests are the norm, and we quickly label anything else as weird or even dangerous, Gaddam said.
每个人都认为他们自身的利益作为准则，所以我们很快的发现了那些被认为奇怪甚至是危险的行为。
However, this is the "first wave" of the virus - scientists don't yet know whether the virus will become more dangerous.
不过，这只是病毒的“第一次浪潮”——科学家们还不知道病毒是否会变得更危险。
Coal ash is known to contain dangerous elements including arsenic, lead, and selenium, yet the TVA refused at first to issue any health warnings about contamination from the spill.
煤灰渣含有多种危险物质，包括砷、铅、硒等，然而田纳西流域管理局起先矢口否认煤灰渣中含有对健康有害的物质。
This third shaking of British public trust is a dangerous moment, but some good may yet come of it.
英国民众信任的第三次地震是一个危险时刻，但也不都是坏事。
By then I was imagining Sam as the Hollywood amalgam of a spy — dashing, dangerous, rugged yet refined, as effortless in a board meeting as in a bar fight.
那时我把山姆想像为一个好莱坞大片里的间谍：潇洒，危险，粗犷却又文雅，就好像轻松的董事会会议。
Not yet because when I looked in the mirror, I still saw the girl I'd been for so much of my life. The girl who had fallen willingly into the deep and dangerous waters of drug addiction.
不是现在是因为我从镜子里看到的还是那个曾经的小女孩，那个从15岁开始就开始陷入吸毒危险的小女孩。
Yet all this betrays a dangerous complacency.
然而，这种自满是非常危险的。
It's a mistake because attackers are quite clever; they can often think of yet another dangerous data value.
这是不对的，因为攻击者非常聪明；他们常常会想到出其他的危险数据值。
Landing in 2004 in Meridiani Planum, the robotic Opportunity has embarked on its longest and most dangerous trek yet, now aiming to reach large Endeavor Crater sometime next year.
2004年着陆于子午平原，机器人机遇号开始了它最长最危险的游历，目前它正意图在明年某个时候到达巨大的奋进环形山。
Qaddafi has not yet stepped down from power, and until he does, Libya will remain dangerous.
卡扎菲还没有下台，而在下他下台之前，利比亚仍然十分危险。
Nightmare scenarios are dangerous for yet another reason: the expected consequences of a nuclear Iran, real or imagined, will determine the policies pursued to prevent Tehran from developing the bomb.
恶梦般的情景很危险的另外一个原因是：备受期望的拥有核武器的伊朗下场，不管是真的还是只是想象，都将决定防止德黑兰引爆核武器的政策。
Yet even in these dangerous surroundings, culture and beauty endure and an honest man can still chart a path for good, no matter how perilous.
然而即使在如此险恶的环境下，文化与人性中的美好仍然顽强地坚持着，正直的人们仍然会不计代价地追求通向善良的航道。
Mr Obama has yet to show he has the staying power to take on a dangerous, stubborn and occasionally bad world.
但奥巴马没能表明他有耐力承担起这个危险、顽固又时而糟糕的世界。
He knew he was dealing with a very dangerous drug. Yet he administered it in Jackson's house without the proper medical equipment.
可是在没有合适的医疗设备的情况下，他却仍然将药物放任在杰克逊家中。
His life was in danger when facing the dangerous tiger. Although tigers are endangered animals, yet now the tiger was endangering his life.
面对危险的老虎，他的生命处于危险之中。尽管老虎是濒危动物，可是，现在这个老虎正威胁着他的生命。
Yet within its core market — corporate users — RIM faces a more dangerous crisis: Companies are finding it increasingly easier to switch to iPhones and Android phones.
然而，在其核心市场——企业用户——中，RIM面临一个更严重的危机：各公司发现换用iPhone或Android手机越来越容易。
The trend was started by Luis Fernando Candela, from Rio de Janeiro, Brazil, who was photographed by his girlfriend performing what he claimed was his 'most dangerous stunt' yet.
这种玩法是巴西人路易斯·费尔南多·康代拉最先发起的，他那些所谓的“最危险的特技”照片都是他女友给他拍的。
Does this mean that medications lose their effectiveness or worse yet, become dangerous after the expiration date?
这是否意味着药物失去效力或更糟糕的是，在到期日期之后变得危险？
Yet just because something is dangerous does not always mean it is all bad. Belladonna and other poison plants have a long history of medical use.
不过，有些东西虽然危险但不意味着它总是不好的。颠茄和其他毒性植物有着很长的药用史。
I'm not married to my Agnes yet, and you're a dangerous rival, Mr Copperfield.
我还没有把阿格尼斯娶过门，而你是一位危险的对手，科波菲尔先生。
You prefer having a concrete plan, yet being weighed down by too much structure can be dangerous now.
你想要一个具体的计划，但是太多的结构又很危险，这点让你很担心。
Each medicine may be safe to use by itself, yet together there could be dangerous or even deadly drug interactions.
每种药也许在单独使用的时候都是安全的，但是它们一起服用时是危险的甚至有致命的药物互相作用。
Each medicine may be safe to use by itself, yet together there could be dangerous or even deadly drug interactions.
每种药也许在单独使用的时候都是安全的，但是它们一起服用时是危险的甚至有致命的药物互相作用。
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