Research will be needed as a preliminary to taking a decision.

作出决定之前需要进行研究。

《牛津词典》

Usually some hypothesis is a necessary preliminary to the collection of facts, since the selection of facts demands some way of determining relevance.

通常，有某种的假说是收集事实的必要先决条件，因为在对事实的选择上，要求有某种方法确定事实是否与题有关。

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The work is too preliminary to suggest that people should stop swimming, said Manolis Kogevinas, an epidemiologist at the Center for Research in Environmental Epidemiology in Barcelona.

巴塞罗纳环境流行病研究中心的流行病学家马诺里斯•柯格维纳斯表示，这项研究还处于初期，建议人们停止游泳为时尚早。

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Full preliminary election tabulations are expected to be released Saturday by the country's government-appointed Independent Election Commission.

VOA: standard.2009.09.11

In other words, aren't I going to be hopelessly prejudiced about what I read if I've got some sort of preliminary conception of what it's all about?

话句话说，难道对于文本的话题有些初步概念,我就会怀有偏见吗？

耶鲁公开课 - 文学理论导论课程节选

The mass disqualification of votes comes as officials in Kabul continue to release behind schedule,partial and preliminary results of the August 20 election.

VOA: standard.2009.09.07

"It's too preliminary to tell, " Landrieu said, adding that he expected more information later.

CNN: Police name suspect in New Orleans parade shooting

Still, the findings remain far too unclear and preliminary to support any national policy.

NPR: Rabid Reader: 'Fat Land' and U.S. Supersizing

From these Qur'anic citations, then, it can be seen that Da'wa, the invitation to convert or submit, is preliminary to jihad.

CENTERFORSECURITYPOLICY: Ignoring the call to Islam will bring jihad