Quinine is an effectual preventive for malaria.

奎宁是有效的疟疾预防药。

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Opting for organic foods is an effectual choice for personal and planetary health.

选择有机食品对个人和全球的健康均有效。

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Corporation strategy alliance is an effectual approach to gain competition advantage.

企业战略联盟是企业获取竞争优势的有效途径。

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In addition to the obvious benefits of treaty obligations and mutually shared rules, an effectual dispute resolution venue only further encourages business ventures that might otherwise seem too risky.

FORBES: For U.S. Businesses, Russia Means Immense Opportunity -- and Immense Exposure

He added that the industry is facing problems including the exchange rate between sterling and the Euro which meant an effectual 15-18% increase in price, the collapse in the Far East economy which has made materials coming from there much cheaper and the recent doubling of oil prices in Northern Ireland.

BBC: More textile jobs under threat