Virgin-soil epidemics are those in which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless.
处女地流行病指的是那些风险人群以前没有接触过袭击他们的疾病，因此在免疫上几乎毫无防御能力的疾病。
Having long been the most accessible river crossing between Nevada and Arizona, the dam is thought to be at risk of a terror strike, with trucks already banned from crossing.
胡佛大坝长期作为内华达州和亚利桑那州主要的交通连接处，虽然卡车已经禁止通行，但是大坝依然面临恐怖袭击的威胁。
It also is increasingly used to weed out embryos at risk of genetic diseases — such as breast cancer — that could be treated, or that might not strike a person later in life.
因为存在有某些基因疾病——例如乳腺癌——的风险而被流产的胎儿也越来越多，而这些疾病是可以被治愈的，或者这些疾病也许根本不会发生。
You also can choose from an array of strike prices and expiration dates depending on your appetite for risk.
你还可以从一系列行权价格和到期日中做选择，具体取决于你的风险承受意愿。
The gamblers and risk-takers turned south on the California Trail over the Sierra Nevada, ready to strike it big or not at all.
而赌徒和冒险家却在岔路口拐向南方走上了加州小道，翻越内华达山脉，准备好要么发大财要么一无所有。
Feroz Hassan Khan, a retired Pakistani general in charge of arms control, said Pakistan perceives a real risk of a preemptive strike by India.
一名已退休的巴基斯坦负责武器控制的将军费罗兹·哈桑·汗说，巴基斯坦感觉到印度先发制人带来的威胁。
In the warmer months they are at risk from attack by maggots, which can eat into their flesh in a condition called fly strike.
天气比较热的月份，它们有可能会生蛆虫，这些虫子会侵噬它们的肉，使它们患上一种叫做羊毛蝇蛆症的病。
In formulating such guidance, the HKMA has to strike a reasonable balance between protecting consumer rights and upholding banks legitimate interests in managing their business risk.
金管局制定上述指引时，须在保障消费者权利及维护认可机构在管理业务风险方面的合法权益之间取得合理平衡。
So how does a company strike the right risk-reward balance and get the competitive benefit of taking risks safely?
那公司如何才能正确的平衡风险和收益之间的关系，以较小的风险获得有利的回报呢？
What is a lower bound for the price of a four-month call option on a non-dividend-paying stock when the stock price is $28, the strike price is $25, and the risk-free interest rate is 8% per annum?
什么是一个较低的一个非，股息，支付的股票四个月呼叫选项的价格势必当股票的价格是$28，行使价$25，无风险利率每年8％？
If the average risk premium rises above the strike rate in three months, the higher interest payments will be offset by gains from the option.
如果在3个月内平均的风险溢价上升超过了执行价，期权的收益可以抵消高出来的利息支付。
If the average risk premium rises above the strike rate in three months, the higher interest payments will be offset by gains from the option.
如果在3个月内平均的风险溢价上升超过了执行价，期权的收益可以抵消高出来的利息支付。
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