Though "easy" may be welcome, unluckily it's of little use for any long time development of reading skills and the general language level.

虽然“简单”可能是受欢迎的，但不幸的是，它对长期发展阅读技能和一般语言水平几乎没有用处。

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Health and environmental advocates have long urged US government agencies to tighten the use of some of the 11 chemicals the report cites and called for more studies on their long-term effects.

长期以来，健康和环保倡导者们一直在敦促美国政府部门加强对报告中提及的11种化学物品的使用管制，并呼吁对化学品的长期影响进行更多的研究。

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Health and environmental advocates having long urged U.S. government agencies to tighten the use of some of the 11 chemicals the report cites and called for more studies on their long-term effects.

长期以来，健康和环保倡导者们一直在敦促美国政府部门加强对报告中提及的11种化学物品的使用管制，并呼吁对它们的长期影响进行更多的研究。

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Congress will take its annual long recess in August, and Democrats hope to use the time to build support for health-care reform around the country.

VOA: standard.2009.07.31

Research on subjective wellbeing-- the term that psychologists use to capture happiness essentially has been going on for very, very long time.

对幸福的研究-,心理学家用这个词来描述快乐,已经进行了很多年。

哈佛公开课 - 幸福课课程节选

How long" is going to be such a useful pattern for you to use.

How long”是个特别有用的句型。

How long课堂 - SpeakingMax英语口语达人

Therefore, it is hoped that Celebrex will be safer than other NSAIDS for long-term use.

CNN: FDA approves first drug in new class of painkillers

In theory, this makes them safer for long-term use, particularly in older patients.

FORBES: Magazine Article

Toughbook C1 also offers an ergonomic strap and dome hand support system that cradles the hand for comfortable long term use as well as providing a natural keyboard tilt.

ENGADGET: Panasonic slips Core i5 into 'world's lightest' 12.1-inch Toughbook C1 convertible tablet